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Number Systems Questions

Practice 14 Number Systems questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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14
Total Questions
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3
Easy
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10
Medium
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1
Hard
Practice by Exam:Quantitative Aptitude(10)Mathematics and Science(2)Computer Science(1)General Intelligence and Reasoning(1)

About Number Systems — practice questions, PYQs & concepts

Number Systems is a frequently-tested topic on Quantitative Aptitude, Mathematics and Science, Computer Science. ExamTest.live currently lists 14 Number Systems questions spanning previous-year papers from 2017 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.

Number Systems weight in competitive exams

Across our Number Systems question bank, the largest sources are Quantitative Aptitude (10), Mathematics and Science (2), Computer Science (1) and General Intelligence and Reasoning (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 3 easy Number Systems questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Number Systems Questions(1–14 of 14)

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Q1mediummcqQuantitative AptitudeCompetitive Exam2026
The average of 25 integers is zero. What is the maximum possible number of positive integers?
Q2mediummcqQuantitative AptitudeCompetitive Exam2026
Find the largest number which should replace P in the 7-digit number 87893P4 to make the number divisible by 4.
Q3mediummcqQuantitative AptitudeCompetitive Exam2026
A bag contains rupee, 50-paise and 25-paise coins in the ratio 3:4:6. If the total amount is ₹143, the number of 50-paise coins is:
Q4mediummcqQuantitative AptitudeCompetitive Exam2026
Find the smallest non-zero value of k so that the 7-digit number 48397k5 is divisible by 9.
Q5hardmcqQuantitative AptitudeSSC CGL2026
The average of numbers is . The average of first numbers is and the average of last numbers is . number is more than number and more than number. What is the average of the and numbers?
Q6mediummcqQuantitative AptitudePractice Test2026
How many digits will be to the right of the decimal point in the product ?
Q7easymcqQuantitative AptitudeCompetitive Exam2026
Find the HCF of , , .
Q8mediummcqQuantitative AptitudeCompetitive Exam2026
Find the greatest number which when divided by , , and leaves the same remainder.
Q9mediummcqGeneral Intelligence and ReasoningCompetitive Exams2026
Which of the following options represents the correct ascending order of the given terms?
1. Trillion
2. Thousand
3. Billion
4. Hundred
5. Million
Q10mediummcqQuantitative AptitudeCompetitive Exam2026
A whole number which when divided by gives as remainder. What will be the remainder when is divided by ?
Q11mediummcqQuantitative AptitudeCompetitive Exam2026
Three times the first of three consecutive odd integers is more than twice the third. The third integer is:
Q12mediummcqComputer ScienceCompetitive Exam2026
The binary equivalent of the decimal number is:
Q13easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2017
The decimal equivalent of the binary number (1101)
2
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is
Q14easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2017
The decimal equivalent of the binary number is

Frequently Asked Questions

How many Number Systems questions are on ExamTest.live?▼
We have 14 Number Systems questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Number Systems MCQs free?▼
Yes. All Number Systems questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Number Systems questions?▼
Number Systems questions are commonly asked in Quantitative Aptitude, Mathematics and Science, Computer Science, General Intelligence and Reasoning. You can filter by exam using the links above.
How do I practice Number Systems questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.