Mathematical Operations Questions

In a certain code language, '−' represents '×', '÷' represents '+', '+' represents '÷' and '×' represents '−'. Find out the answer to the following question.
9÷12−15+4×10=?

The following equation is incorrect. Which two signs should be interchanged to correct it?
6×18+40÷30−10=20

If 6@1=12, 6@2=24 and 9@9=162, then find the value of 4@6=?

In a certain code language, '×' represents '+', '÷' represents '×', '−' represents '÷' and '+' represents '−'. Find out the answer to the following question.
25÷2−10+10×6=?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?
8+2−40÷5×16=44

If 18Δ4=11, 16Δ8=12, and 6Δ12=9, then find the value of 18Δ14=?

If '+' represents '$÷$ ', '$÷$ ' represents '-', '-' represents '$\times$ ', and '$\times$ ' represents '+', then what is the value of:
$$30+10÷6-5\times 6$$

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then calculate the value of the following expression:
96 L 8 S 4 V 16 M 9=?

If '$<$ ' means 'minus', '$>$ ' means 'plus', '$=$ ' means 'multiplied by' and '$/$ ' means 'divided by', then what would be the value of $27>81/9<6$?

If in a certain code language, '$+$ ' represents '$\times$ ', '$-$ ' represents '$+$ ', '$\times$ ' represents '$÷$ ' and '$÷$ ' represents '$-$ ', find the answer to the following question:
$$4+2-9\times 3÷6=?$$

If in a certain code language, '+' represents '$\times$ ', '$-$ ' represents '$+$ ', '$\times$ ' represents '$÷$ ' and '$÷$ ' represents '$-$ ' then find the value of the following expression.
$$8÷4\times 2-9+3$$

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then calculate the value of the following expression:
126×14+7−3÷2=?

If in a certain code language, '+' represents '×', '–' represents '+', '×' represents '÷' and '÷' represents '–'. Find out the answer of the following expression:
$$9-3+1÷6\times 2=?$$

If "−" stands for "division", "+" stands for "multiplication", "÷" stands for "subtraction" and "×" stands for "addition", then which of the following equations holds true?

Which two numbers (not digits of the numbers), from amongst the given options, should be interchanged to make the given equation correct?
12×9+27÷3−5=60

Which two signs should be interchanged to make the given equation correct?
152+8×16÷9−4=309

Which two signs should be interchanged to make the given equation correct?
36+8×184−23÷10=90

If 'A' stands for '$÷$ ', 'B' stands for '$\times$ ', 'C' stands for '$+$ ' and 'D' stands for '$-$ ', what will come in place of the question mark ($?$) in the following equation?
$$\text{70 D 11 B 5 C 45 A 9 = ?}$$

Select the correct combination of mathematical signs to sequentially replace the $\ast$ signs and balance the given equation.
$$16\ast 17\ast 14\ast 2\ast 3\ast 251$$

Which two signs should be interchanged to make the given equation correct?
$$5+156-12\times 15÷15=185$$

If $+$ means $\times$, $-$ means $÷$, $\times$ means $-$, and $÷$ means $+$, what will be the value of the following expression?
$$9+7\times 15-5÷5=?$$

What will come in place of the question mark ($?$) when $+$ and $-$ are interchanged and 5 and 18 are also interchanged in the given expression?
$$5-18+12=?$$

What will come in place of the question mark ($?$) in the following equation, if '$+$ ' and '$-$ ' are interchanged and '$\times$ ' and '$÷$ ' are interchanged?
$$110\times 10-175÷5+29=?$$

Which two signs should be interchanged to make the given equation correct?
99÷33−6+48×26=40

What will come in the place of the question mark (?) in the following equation, if '÷' and '-' are interchanged and '×' and '+' are interchanged?
[(48−2)÷23]×19+3=?

Which two numbers (not individual digits) should be interchanged to make the given equation correct?
56+(11×2)−(52÷4)+16=76

What will come in the place of '?' in the following equation, if '+' and '-' are interchanged and also '×' and '÷' are interchanged?
13÷8−96×6+17=?

Find the two signs to be interchanged for making the following equation correct.
$$9+6\times 3-9÷1=10$$

If $+$ means $-$, $-$ means $\times$, $\times$ means $÷$, $÷$ means $+$, then what will be the value of the following expression?
$$145÷96\times 12+13=?$$

If ‘A’ stands for ‘+’, ‘B’ stands for ‘−’, ‘C’ stands for ‘×’ and ‘D’ stands for ‘÷’, what will come in place of the question mark (?) in the following equation?
$$29\text{ A }37\text{ B }14\text{ C }3\text{ A }(84\text{ D }4)\text{ A }46=\text{?}$$

If $+$ means $-$, $-$ means $\times$, $\times$ means $÷$, $÷$ means $+$, what will come in place of the question mark (?) in the given equation?
$$180\times 60-30÷30+20=?$$

If ‘A’ stands for ‘$÷$ ’, ‘B’ stands for ‘$\times$ ’, ‘C’ stands for ‘$+$ ’ and ‘D’ stands for ‘$-$ ’, what will come in place of the question mark (?) in the following equation?
$$455\text{ A }5\text{ D }17\text{ C }36\text{ B }4=?$$

If 'P' stands for '$÷$ ', 'Q' stands for '$\times$ ', 'R' stands for '$+$ ' and 'S' stands for '$-$ ', what will come in place of the question mark (?) in the following equation?
$$174\text{ P }2\text{ S }45\text{ R }(16\text{ P }4)\text{ Q }5\text{ S }26=\text{?}$$

Which of the following interchanges of signs would make the given equation correct?
$$10+23-3\times 63÷7=70$$

Select the correct combination of mathematical signs to replace the $\ast$ signs and balance the given equation.
$$10\ast 2\ast 1\ast 8\ast 11\ast 8$$

Simplify the following expression using the given code language, where '+' represents '$\times$ ', '$\times$ ' represents '$-$ ', '$-$ ' represents '$÷$ ' and '$÷$ ' represents '$+$ '.
$$9+4-6\times 6÷8$$

If $a\&b=a^2+b+1$ and a\ b = a + b^2 + 2$,thenfindthevalueof$ (4\$3)\&2$.

If $a!b=a-b$, what is the value of $p!q$ if $p=6$ and $q=4$?

Which two signs should be interchanged to make the given equation correct?
$$211\times 14+627÷33-17=520$$

Which two signs need to be interchanged to make the following equation correct?
$$72-63+3\times 4÷49=37$$

What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?
25÷5–918×9+4=?

Which two signs need to be interchanged to make the following equation correct?
31+69÷23×5−83=99

Which two signs should be interchanged to make the given equation correct?
12+156÷13×6−100=50

Which two signs should be interchanged to make the given equation correct?
551÷19−16×12+121=100

What will come in place of the question mark (?) in the following equation if '+' means '×', '×' means '−', '−' means '÷' and '÷' means '+'?
18÷4+3×2−2=?

Find the two signs to be interchanged for making the following equation correct:
$$2+10\times 12-4÷24=8$$

What will come in place of the question mark (?) in the following equation if '$+$ ' and '$\times$ ' are interchanged and '$-$ ' and '$÷$ ' are interchanged?
$$14-7\times 10÷1+7=?$$

Select the correct combination of mathematical signs to sequentially place from left to right in the blanks below to balance the given equation.
$$6\_2\_0\_8=20$$

Select the correct combination of mathematical signs to replace the $\ast$ signs and balance the given equation.
$$13\ast 7\ast 12\ast 4\ast 15\ast 65$$

If $+$ means $-$, $-$ means $\times$, $\times$ means $÷$, and $÷$ means $+$, what will come in place of the question mark (?) in the given equation?
$$22\times 11-450÷50+500=?$$

Which two signs need to be interchanged to make the following equation correct?
56÷28−72+18×6=60

What will come in place of the question mark (?) in the following equation if '+' and '×' are interchanged and '-' and '÷' are interchanged?
5÷9−3×4+6=?

Which two numbers (not individual digits) should be interchanged to make the given equation correct?
21×5−35+(42÷7)+28=96

What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and '×' and '÷' are interchanged?
(28÷4)−(15×3)+48=?

Select the interchanges in numbers and signs that will make the given equation correct.
5÷10×12+14−7=88

Consider the equation:
$$14\times 8÷12+64-2=108$$

This equation is currently incorrect. By interchanging one pair of numbers within the equation, it can be made true. Which pair of numbers should be swapped to balance the equation correctly?

If the mathematical operations are defined as follows:
* '$A\ast B$ ' means '$A+B\times 2$ '
* '$A\#B$ ' means '$A-B÷3$ '
* 'A \ B${}^{\prime }mean{s}^{\prime }$ A \times B + 1${}^{\prime }Whatisthevalueof$ (24 \# (14 * 5)) \$9$?

Which of the following sequences of signs would replace '*' to correctly solve the given equation?
14 24 3 5 3 * 7

Select the correct combination of mathematical symbols to replace the * signs in the equation given below and balance the equation.
62 14 7 18 26

Select the correct combination of mathematical symbols to substitute the signs sequentially and balance the given equation.
165 33 26 17 2 19 16

The symbols given represent the following operations on a number:
(Note: Each symbol operates on the current number, which is the result of the previous operation)

* $+$ means add 2 to the current number.
* $-$ means subtract 1 from the current number.
* $\ast$ means multiply the current number by 6.
* $@$ means reverse the digits of the current number.
* $\#$ means divide the current number by 3.

Find the value of the expression: $5\ast +@-\ast \#$

Identify the next term in the given series:
156, 272, 342, ?

Which two numbers should be interchanged to make the given equation correct?$65+28-35\times 21÷7=16$

Select the correct combination of mathematical signs to sequentially replace the signs and balance the given equation.15 5 16 15 2 61

A group of $5$ workers can complete a job in $8$ days. If each worker is paid $\text{Rs. }400$ per day, what is the total wage paid to all workers?

If '$\text{P}$ ' represents '$÷$ ', '$\text{Q}$ ' represents '$\times$ ', '$\text{R}$ ' represents '$+$ ' and '$\text{S}$ ' represents '$-$ ', what is the value of the mathematical expression $9\text{Q}15\text{P}3\text{R}8\text{S}5$?

If $m\ne n=m^2-mn+n^2$ and $m?n=(m+n{)}^2-mn$, then what is the evaluated product value of $(2?3)\times (5\ne 3)$?

According to a code, digits $0,1,2,3,4,5,6,7,8$ and $9$ are represented by A, B, C, D, E, F, G, H, I and J respectively. In this code, find the value of $\frac{(C\times D)+(F\times J)}{D}$.

Select the correct combination of mathematical signs to replace the signs and balance the given equation.8 2 1 12 18 33

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
83 16 4 57 3

Which two numbers (not the digits of the numbers), from amongst the given options, should be interchanged to make the given equation correct?
42 ÷ 2 + 13 − 5 × 7 = 9

Which two signs need to be interchanged to make the following equation correct?
108 × 27 ÷ 3 - 19 + 95 = 88

Select the option that is related to the third number in the same way as the second number is related to the first number.
11 : 143 : : 15 : ?

Which two signs and two numbers should be interchanged to make the given equation correct?
64−4×2÷8+7=19

Which two signs should be interchanged to make the given equation correct?
289+17×12÷216−300=120

If ‘+’ means ‘-’, ‘-’ means ‘×’, ‘×’ means ‘÷’ and ‘÷’ means ‘+’, then solve the following expression:
43−2×2+8=?

If "$\text{T}$ " means multiplication ($\times$), "$\text{U}$ " means subtraction ($-$), "$\text{V}$ " means division ($÷$) and "$\text{W}$ " means addition ($+$), find the value of the expression:
$$(56\text{ V }4)\text{ W }(26\text{ T }5)$$

Which two numbers (not the digits of the numbers), from amongst the given options, should be interchanged to make the given equation correct?
13−36+18×24÷6=97

Which two numbers (not individual digits) should be interchanged to make the given equation correct?
$$[(39-3)÷6]+11\times 2-4\times 5=13$$

What will come in place of the question mark (?) in the following equation if '+' and '$\times$ ' are interchanged and '-' and '$÷$ ' are interchanged?
$$16-4+7\times 8÷1=?$$

What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?$(14÷2)-(16\times 4)+12=?$

Which two numbers (not individual digits) should be interchanged to make the given equation correct?$3\times 9\times 7–18\times 4+(72÷8)–21=186$

In the given expression $32+80\times 4-7=345$, if the symbols '+' and '$\times$ ' are interchanged, then what will be the new value of the expression ?

If '+' means '-', '-' means '$\times$ ', '$\times$ ' means '$÷$ ' and '$÷$ ' means '+', then what is the value of $12÷23\times 23÷10$ ?

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
20 4 10 5 15 = 93

Select the correct combination of mathematical signs to replace '*' signs and to balance the given equation.
32 8 14 7 16

Which two signs need to be interchanged to make the given equation correct?
3÷2−4×5+5=1

Find out the two signs to be interchanged to make the following equation correct.
18 + 3 × 27 − 9 ÷ 3 = 78

Which two signs should be interchanged to make the following equation correct?
6×2+8−16÷4=18

What will come in the place of '?' in the following equation, if '+' and '−' are interchanged and also '×' and '÷' are interchanged?
88−7÷65×13+34=?

What will come in the place of '?' in the following equation, if '+' and '−' are interchanged and also '×' and '÷' are interchanged?
9÷145×29−75+13=?

If ‘–’ stands for ‘÷’, ‘+’ stands for ‘×’, ‘÷’ stands for ‘–’ and ‘×’ stands for ‘+’, then what is the value of the following expression?
$$80-20+10÷8\times 10$$

When twice of a number added to 3 is multiplied by 5 and added to the number itself, it gives 158. What is the square of that number?

Which two numbers should be interchanged to make the given equation correct?
$$45+35\times 7-81÷9=321$$