In this type of questions, question is provided with substitutes for various mathematical symbols, followed by a question involving calculation of an expression or choosing the correct/incorrect equation. You have to put the real signs in the given equation and then solve the questions as required.

If '&' stands for '+', '~' stands for '÷', '?' stands for '-', '$' stands for '×', then find  the  value  of: 6 $ 15 & 11 $ 5 = ?

In this type of questions, question is provided with substitutes for various mathematical symbols, followed by a question involving calculation of an expression or choosing the correct/incorrect equation. You have to put the real signs in the given equation and then solve the questions as required.

If '*' stands for '-', '$' stands for '×', '!' stands for '÷', '~' stands for '+', then find the value of: 14 ! 6 * 3 * 5 = ?

If 'P' means '+', 'Q' means '÷', 'R' means '×' and 'S' means '−', then 42 Q 7 R 3 P 6 S 2 = ?

By interchanging the given two numbers (not digits) which of the following equation will NOT be correct?

3 and 7

I. 7 × 9 + 3 − 8 ÷ 2 = 30

II. 2 × 3 + 7 − 4 ÷ 1 = 13

If 420 ! 21 * 201 = -181 and 728 ! 26 * 905 = -877, then what is the value of 56 ! 2 * 367?

If 'A' means '+', 'B' means '−', 'C' means '÷' and 'D' means '×', then which of the following equation is correct?

I. 45 A 13 B 38 C 19 D 6 = 46

II. 13 A 47 B 36 C 4 D 5 = 15

If '+' means '−', '−' means '×', '×' means '÷' and '÷' means '+', then 12 × 4 ÷ 22 + 5 − 3 = ?

By interchanging the given two numbers (not digits) which of the following equation will NOT be correct?

2 and 7

I. \(7 \times 3 + 2 - 6 \div 1 = 9\)

II. \(2 \times 8 + 7 - 9 \div 3 = 40\)

Select the correct combination of mathematical signs to replace (*) signs sequentially and to balance the given equation.

\(64 * 16 * 34 * 8 * 3 = 14\)

Select the set, from the given options, in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(6, 13, 78)

(5, 22, 110)

If + means -, - means ×, × means ÷, ÷ means +, then what will come in place of the question mark (?) in the following equation?

28 - 6 ÷ 4 + 14 × 14 = ?

In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Which numbers should replace X and Y so that the pattern followed by the two numbers on the left side of :: is the same as that on the right side of :: ?

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 Operations on 13 such as adding/subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

X : 649 :: 956 : Y

Which two numbers should be interchanged to make the given equation correct?

75 ÷ 5 + 15 × 4 - 17 × 3 + (60 ÷ 6) × 10 = 100

(Note: Interchange should be done of the entire number and not individual digits of a given number.)