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Coding Decoding Questions

Practice 262 Coding Decoding questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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262
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33
Easy
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212
Medium
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17
Hard

About Coding-Decoding — practice questions, PYQs & concepts

Coding-Decoding is a frequently-tested topic on General Intelligence and Reasoning, General Intelligence & Reasoning, General Intelligence. ExamTest.live currently lists 262 Coding-Decoding questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Coding-Decoding weight in competitive exams

Across our Coding-Decoding question bank, the largest sources are General Intelligence and Reasoning (113), General Intelligence & Reasoning (92), General Intelligence (30), Reasoning (25) and Mental Ability (1). Click any exam chip above to drill down to that exam-specific question set.

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All Coding Decoding Questions(1100 of 262)

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Q1mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
14% accuracy
In a certain code language, 'SWEDEN' is written as 'TXDEDO', and 'GERMANY' is written as 'HDSNZOZ'. How will 'PORTUGAL' be written in that language?
Q2mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
14% accuracy
In a certain code language, 'SOAP' is written as '55' and 'FRY' is written as '52'. How will 'CLAN' be written in that language?
Q3mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
0% accuracy
In a certain code language, 'GAS' is written as '54', and 'JOG' is written as '49'. How will 'ZIP' be written in that language?
Q4mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
25% accuracy
In a certain code language, 'are you coming' is written as 'mk hv rc' and 'coming of age' is written as 'bs rc gt'. How is 'coming' written in the given language?
Q5mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
0% accuracy
In a certain code language, 'JUDGE' is written as '47', and 'CROSS' is written as '74'. How will 'BRIEF' be written in that language?
Q6mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
75% accuracy
In a certain code language, 'BAGS' is coded as '43921' and 'KHEM' is coded as '1310715'. How will 'JINK' be coded in that language?
Q7mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
25% accuracy
In a certain code language, 'LIFE' is coded as '4765' and 'MEAT' is coded as '9142'. What is the code for 'E' in that code language?
Q8hardmcqGeneral Intelligence & ReasoningStaff Selection Commission2026
0% accuracy
In a certain code language, 'PEDAGOGY' is written as 'QGGECLEX' and 'CLASSICS' is written as 'DNDWOFAR'. How will 'TOGETHER' be written in the same code language?
Q9mediummcqGeneral Intelligence and ReasoningCompetitive Exam2026
67% accuracy
If is coded as , then will be coded as _______.
Q10mediummcqGeneral Intelligence and ReasoningCompetitive Exam2026
0% accuracy
If is written as , then will be written as:
Q11mediummcqReasoningCompetitive Exam Practice Paper2026
0% accuracy
If is coded as , then how will be coded?
Q12easymcqGeneral Intelligence and ReasoningSSC CGL2026
50% accuracy
In a certain code language, 'YOUR' is coded as '6543' and 'LOAD' is coded as '3129'. What is the code for 'O' in that code language?
Q13mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
In a certain code language, 'QKV' is coded as '14819' and 'SHY' is coded as '16522'. How will 'MDS' be coded in that language?
Q14mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
In a code language, 'FAMOUS' is coded as 'UZNLFH' and 'SLOW' is coded as 'HOLD'. How will 'RUMOUR' be coded in the same language?
Q15mediummcqReasoningCompetitive Exam Practice Paper2026
0% accuracy
If is written as , then how will be written?
Q16mediummcqGeneral Intelligence and ReasoningGovernment Recruitment Exam Practice Paper2026
0% accuracy
According to the code, digits are represented by respectively. Find the value of .
Q17mediummcqReasoningCompetitive Exam Practice Paper2026
0% accuracy
If is coded as , and as , then how will be coded?
Q18mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
In a code language, 'DANCER' is coded as 'REPEAD' and 'QUEAZY' is coded as 'YZGCUQ'. How will 'SQUAWK' be coded in the same language?
Q19mediummcqGeneral Intelligence and ReasoningSSC CGL2026
50% accuracy
In a certain code language, 'BELO' is coded as '271217' and 'IGJA' is coded as '117103'. How will 'DUXE' be coded in that language?
Q20hardmcqGeneral Intelligence and ReasoningSSC CGL2026
50% accuracy
In a certain code language, ‘MOBILES’ is written as ‘N12Y18O22H’ and ‘VEHICLE’ is written as ‘E22S18X15V’. How will ‘NEUTRON’ be written in the same code language?
Q21mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
If MUNREB is written as 628146 and IESRES as 345145, how will SERBER be written?
Q22mediummcqGeneral Intelligence and ReasoningGovernment Recruitment Exam Practice Paper2026
0% accuracy
If the code for is , what is the code for ?
Q23easymcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
In a certain code language, 'we live here' is coded as 'pa tu nk' and 'here was tree' is coded as 'rp nk fu'. How is 'here' coded in the given language?
Q24hardmcqGeneral Intelligence and ReasoningSSC CGL2026
50% accuracy
In a code language, 'MAINTY' is coded as 'SGOTZE' and 'GENIOUS' is coded as 'MKTOUAY'. How will 'POPULAR' be coded in the same language?
Q25mediummcqGeneral Intelligence and ReasoningSSC CGL2026
50% accuracy
In a certain code language, 'TAIL' is coded as '7614' and 'TALE' is coded as '1749'. What is the code for 'I' in the given language?
Q26mediummcqGeneral Intelligence and ReasoningSSC CGL2026
100% accuracy
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.
MAKE: NCJC :: FOLD: GQKB :: VIEW: ?
Q27mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
In a certain code, COLD is coded as GSPH, then how is NOT coded in the same way?
Q28mediummcqMental AbilityUP Police Constable2026
50% accuracy
In a certain coded language, if 'SCRABBLE' is coded as '19318122125', how will 'STUNNED' be coded in that language?
Q29mediummcqGeneral Intelligence and ReasoningSSC CGL2026
100% accuracy
Select the option that is related to the fifth letter cluster in the same way as the second letter cluster is related to the first letter cluster and the fourth letter cluster is related to the third letter cluster.
COMBINE : MOCENIB :: FURTHER : RUFREHT :: REVERSE : ?
Q30mediummcqGeneral Intelligence and ReasoningSSC CGL2026
100% accuracy
In a code language, 'ELASTCY' is coded as 'GNCSVEA' and 'VIRTUAL' is coded as 'XKTTWCN'. How will 'TANGLED' be coded in the same language?
Q31mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
In a certain code language, JUMP is coded as "HRIK" and WOLF is coded as "ULHA". How will FOWL be coded in that language?
Q32easymcqGeneral Intelligence and ReasoningSSC CGL2026
100% accuracy
In a certain code language, 'he knows spanish' is coded as 'ty fr op' and 'spanish is difficult' is coded as 'fr hg df'. How will 'spanish' be coded in that language?
Q33hardmcqGeneral IntelligenceSSC Selection Post 20212026
0% accuracy
In a certain code language, 'FLOWER' is coded as '166', and 'SHIFT' is coded as '73'. How will 'VOLUME' be coded in that language?
Q34mediummcqGeneral IntelligenceSSC Selection Post 20212026
0% accuracy
In a certain code language, 'FROG' is coded as 92, and 'DUCK' is coded as 78. How will 'BEAR' be coded in that language?
Q35mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
In a code language, 'SLEEK' is coded as 37 and 'FOLD' is coded as 25. How will 'YATCH' be coded in the same language?
Q36easymcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
In a certain code language, 'sun and sand' is written as 'zf jc dt', and 'the hot sun' is coded as 'km dt wo'. How will 'sun' be coded in that language?
Q37mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
In a certain code language, 'RULE' is written as 'VXNF' and 'LEAD' is written as 'PHCE'. How will 'HERO' be written in that language?
Q38mediummcqGeneral Intelligence and ReasoningCompetitive Exam2026
0% accuracy
In a certain code language, 'RACE' is written as 'VWGA' and 'BANK' is written as 'FWRG'. How will 'STEM' be written in that code language?
Q39mediummcqGeneral Intelligence & ReasoningCompetitive Exam Practice2026
0% accuracy
In a certain code language, PETAL is coded as 11-22-7-26-15. How will UNDER be coded in that language?
Q40mediummcqReasoningMock Test2026
0% accuracy
In a certain coding system, each vowel in a word is replaced by the next letter of the English alphabet () and each consonant is replaced by the previous letter of the English alphabet (). What will be the coded form of the word "INFORMATION"?
Q41mediummcqReasoningMock Test2026
0% accuracy
In a certain code language, each letter of a word is replaced by another letter following a specific pattern. For example, 'BADAM' is coded as 'ABCBD' and 'SEED' is coded as 'EFFC'. Using the same pattern, what is the code for 'BASED'?
Q42mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
In a certain code language, 'FIND' is written as 'CLFB' and 'HOW' is written as 'VME'. How will 'WILL' be written in that same language?
Q43mediummcqReasoningMock Test2026
0% accuracy
Observe the two given pairs of letter clusters and find the third pair of letter clusters using the same pattern.
Q44mediummcqReasoningMock Test2026
0% accuracy
If each of the letters in the English alphabet is assigned an even numerical value according to , then what will be the total value of the letters for the word 'PHOTOSYNTHESIS'?
Q45mediummcqReasoningCompetitive Exam2026
0% accuracy
In a certain code language, 'FLOWER' is coded as 'RFOELW', then 'ANIMAL' will be written as:
Q46easymcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
In a certain code language, 'candle main' is coded as 'fire blaze' and 'line candle' is coded as 'number fire'. What is the code word for 'main'?
Q47mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
In a code language, 'bus car bike' is written as 'az bz ez', 'bicycle tyre car' is written as 'bz fz pz', and 'scooter bus tyre' is written as 'az pz sz'. What is the code for the word 'bicycle' in that language?
Q48easymcqGeneral Intelligence & ReasoningSSC CGL2026
100% accuracy
In a certain code language, FROM is coded as 8 and BITTERNESS is coded as 20. What is the code for CAULIFLOWER?
Q49mediummcqReasoningCompetitive Exam2026
0% accuracy
If RED is coded as UHG, then BLUE will be coded as:
Q50mediummcqReasoningCompetitive Exam2026
0% accuracy
If the name of a game is formed by rearranging the letters of the word TLBSBEAKLA, then what will be the sixth letter from the right end of the name of the game?
Q51mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
In a certain code language, 'DINESH' is coded as 12-27-42-15-57-24 and 'VIRAT' is coded as 66-27-54-3-60. How will 'GAUTAM' be coded in that language?
Q52mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
In a certain code language, 'CUTE' is written as 'FQWA' and 'BLUE' is written as 'EHXA'. How will 'VOTE' be written in that same code language?
Q53easymcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
In a certain code language, 'served her people' is written as 'vt yc df', and 'dinner is served' is coded as 'kp df hu'. How will 'served' be coded in that language?
Q54mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
In a certain code language, 'LAND' is written as 'IWKZ' and 'GOLD' is written as 'DKIZ'. How will 'TEAM' be written in that same code language?
Q55mediummcqReasoningCompetitive Exam2026
0% accuracy
In a certain code, 'N' is written as 'J', 'S' as 'D', 'R' as 'Q', 'O' as 'P', 'I' as 'K', 'M' as 'Z', 'A' as 'M' and 'G' as 'S', then how will 'ORGANISM' be written in that code?
Q56mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
In a certain code language, 'DICE' is written as 'EKFI' and 'PLAN' is written as 'QNDR'. How will 'LUDO' be written in that same language?
Q57hardmcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
100% accuracy
In a certain code language, 'SQUARE' is coded as '1081599', and 'RIGHT' is coded as '915782'. How will 'SUBTLE' be coded in that language?
Q58mediummcqGeneral IntelligenceSSC Selection Post 2018 Higher Secondary Level2026
0% accuracy
शब्द ‘PERSONIFICATION’ में कि तने अक्षरों के स्था न मा न अंग्रेजी वर्णमा ला के स्था न मा नों के समा न हैं?
Q59easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
100% accuracy
In a certain code language, 'SIGNAL' is coded as 673425, and 'SLIDE' is coded as 65719. How will 'IDEAL' be coded in that language?
Q60mediummcqGeneral Intelligence & ReasoningCompetitive Exam Practice2026
0% accuracy
The word CORPORATION has been coded using 4 different codes.Code 1: XLIKLIZGRLMCode 2: DNSOPQBSJNOCode 3: XJMKJMVODJICode 4: BPQQNSBSJNOWhich of the following codes is used to write the word ROUTES as SNVSFR?
Q61easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
0% accuracy
In a certain code language, 'Knowledge' is written as 'Egdeknowl'. How will 'Sarcastic' be written in that language?
Q62easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
100% accuracy
In a certain code language, 'ANSWER' is written as 'ASNEWR', and 'BRANCH' is written as 'BARCNH'. How will 'LAWYER' be written in that language?
Q63hardmcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
0% accuracy
In a certain code language, 'CROW' is coded as 177, and 'EAGLE' is coded as 90. How will 'DOVE' be coded in that language?
Q64mediummcqGeneral IntelligenceSSC Selection Post 2018 Higher Secondary Level2026
0% accuracy
नि म्नलि खि त कूट भा षा का ध्या नपूर्वक अध्ययन की जि ये और प्रश्नों के उत्तर दी जि ये।यदि D = 8, H = 16, R = 36, BD = 12 है, तब AOM को इस कूट भा षा में कि स प्रका र लि खा जा सकता है?
Q65mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
0% accuracy
In a certain code language, 'JOVIAL' is written as 'QIECZF' and 'TENDER' is written as 'GYMXVL'. How will 'STRING' be written in that language?
Q66mediummcqGeneral IntelligenceSSC Selection Post 2018 Higher Secondary Level2026
100% accuracy
एक कूट भा षा में, THANKS को NKSAHT लि खा जा ता है। इस कूट भा षा में POETRY को कि स प्रका र लि खा जा येगा ?
Q67mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
In a certain code language, 'NOISE' is coded as 124 and 'WILD' is coded as 96. How will 'GIVER' be coded in the same language?
Q68mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
Select the option that is related to the fifth letter cluster in the same way as the second letter cluster is related to the first letter cluster and the fourth letter cluster is related to the third letter cluster.
DIALOGUE: HMEPKCQA :: HOSPITAL: LSWTEPWH :: CHAMBERS : ?
Q69mediummcqGeneral IntelligenceSSC Selection Post 20212026
0% accuracy
In a certain code language, 'BHOPAL' is written as 'OBHLPA', and 'KANPUR' is written as 'NKARPU'. How will 'INDORE' be written in that language?
Q70mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
In a certain code language, 'THORP' is written as 'IUNKM' and 'SERIES' is written as 'JXKTXJ'. How will 'TRACE' be written in that language?
Q71mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
In a certain code language, 'PAST' is coded as '9713' and 'SORE' is coded as '8146'. What is the code for 'S' in that language?
Q72easymcqGeneral IntelligenceSSC Selection Post 20212026
0% accuracy
In a certain code language, 'PARK' is coded as '3749', and 'RACE' is coded as '4762'. How will 'CARE' be coded in that language?
Q73mediummcqGeneral IntelligenceSSC Selection Post 20212026
0% accuracy
In a certain code language, 'Z' is coded as 261, 'R' is coded as 189, and 'J' is coded as 1017. How will 'P' be coded in that language?
Q74mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
In a certain code language, 'BUSHY' is written as 'CTTGZ' and 'COAST' is written as 'DNBRU'. How will 'DWELL' be written in that language?
Q75mediummcqGeneral IntelligenceSSC Selection Post 2018 Higher Secondary Level2026
100% accuracy
एक वि शि ष्ट कूट में, FISH को 2118819 लि खा जा ता है। इस कूट में POND को क्या लि खा जा येगा ?
Q76easymcqGeneral IntelligenceSSC Selection Post 20212026
0% accuracy
In a certain code language, 'you can go' is written as 'sat nat pat', 'they can join' is written as 'pat gat zat', and 'they are ready' is written as 'dat zat yat'. How will 'join' be written in that language?
Q77mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'SIGN' is coded as '3614', and 'RISK' is coded as '7639'. How will 'KING' be coded in that language?
Q78mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
In a certain code language, 'Lakshya is Playing Chess' is written as 'it demrta bless popmase', 'Naitik is Reading a book' is written as 'g lifhte it plitnsh hool', and 'Ashu is Playing Cricket' is written as 'it rticket popmase dapu'. What will be the code for the word 'Playing' in that language?
Q79mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'HASTY' is coded as '2782619'. How will 'BLAME' be coded in that language?
Q80mediummcqGeneral Intelligence and ReasoningAdda2472026
If Sunday is coded as January, Tuesday as March, Thursday as May, then Saturday will be coded as:
Q81mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'CACTUS' is written as 'GCGVYU', and 'DAHLIA' is written as 'HCLNMC'. How will 'ORCHID' be written in that language?
Q82mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
In a certain code language, 'THEORY' is coded as '2192497', and 'BRIGHT' is coded as '259320192'. How will 'SOLUTION' be coded in that language?
Q83mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'SLICE' is coded as '222418310', and 'FRIGHT' is coded as '2192018921'. How will 'PLUNGE' be coded in that language?
Q84easymcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'PHASE' is written as 'AEHPS'. How will 'TONIC' be written in that language?
Q85easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
In a certain code language, 'MENTOR' is written as 'NVMGLI' and 'DIARY' is written as 'WRZIB'. How will 'SHIMLA' be written in that language?
Q86mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, LION is coded as 12-9-15-14, and GOAT is coded as 7-15-1-20. How will LAMB be coded in that language?
Q87mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'Y' is coded as 225, and 'Q' is coded as 1017. How will 'T' be coded in that language?
Q88easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
In a certain code language, 'MADRID' is written as 'NBESJE', and 'LISBON' is written as 'MJTCPO'. How will 'MUNICH' be written in that language?
Q89mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'ALGORITHM' is written as 'AGLOYHIMT'. How will 'MALICIOUS' be written in that language?
Q90mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'GARDEN' is coded as '719425', and 'KINLEY' is coded as '235327'. How will 'SLUMBER' be coded in that language?
Q91mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
In a certain code language, 'UNITED' is coded as '89' and 'SHOP' is coded as '50'. How will 'TRANSIT' be coded in that language?
Q92mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'SLATE' is written as 'TNDXJ', and 'STARK' is written as 'TVDVP'. How will 'BLEAT' be written in that language?
Q93mediummcqReasoningCompetitive Exam2026
If is coded as , then which of the following has thus numerical code ?
Q94mediummcqReasoningAUT-242026
If , what is the value of if and ?
Q95mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'DENTIST' is written as 'GHQTKUV', and 'TEACHER' is written as 'WHDCJGT'. How will 'BROTHER' be written in that language?
Q96hardmcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
In a certain code language, 'QUICK' is coded as '162418610'. How will 'FOUND' be coded in that language?
Q97mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, BHOPAL is written as BOHAPL, and KANPUR is written as KNAUPR. How will INDORE be written in that language?
Q98mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, ‘RUST’ is coded as ‘7539’ and ‘SORE’ is coded as ‘3472’. How will ‘TRUE’ be coded in that language?
Q99mediummcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, 'JUGFUL' is coded as 1021762112, and 'KERNEL' is coded as 1151814512. How will 'LAPSUS' be coded in that language?
Q100hardmcqGeneral Intelligence & ReasoningSSC CGL2026
In a certain code language, ‘PRAYER’ is coded as ‘7927109’ and ‘GLOVES’ is coded as ‘143641010’. How will ‘SOURCE’ be coded in that language?

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