1. Which two numbers should be interchanged to make the following equation correct, 8 + 12 ÷ 9 × 6 ? 4 = 12 ÷ 6 × 8 + 9 - 1 ?

12 and 8

6 and 9

6 and 12

8 and 4

Answer: 6 and 12

Explanation:


2. Which two signs should be interchanged to make the following equation correct, 10 - 15 × 9 + 6 ÷ 3 = 9 ?

- and +

÷ and +

+ and -

× and -

Answer: - and +

Explanation:


3. Which two signs should be interchanged to make the given equation correct ?

× and +

+ and ÷

- and +

÷ and -

Answer: + and ÷

Explanation:


4. Find out the two signs to be interchanged for making the following equation correct. (1/4) ÷ (1/ 64) - 5 + 45 × 120 = 5 ?

× and +

÷ and ?

+ and ?

× and ?

Answer: × and ?

Explanation:


5. If ‘A’ denotes ‘ ÷ ’, ‘B’ denotes ‘ × ’, C’ denotes ‘ + ’, and D’ denotes ‘-’, then what will be the value of the following expression, 12 B 12 A 4 C 5 D 1 ?

50

40

39

59

Answer: 40

Explanation:


6. What will be the value of the following equation if ‘÷’ means addition , ‘+’ means subtraction , ‘-’ means multiplication and ‘×’ means division, 72 × 9 - 3 ÷ 8 + 2 = ?

25

30

40

35

Answer: 30

Explanation:


7. Which two signs should be interchanged in the following equation to make it correct 24 - 12 ÷ 4 + 8 × 2 = 11 ?

+ and ×

- and ÷

+ and -

+ and ÷

Answer: + and -

Explanation:


8. Which two signs should be interchanged in the following equation to make it correct, 27 ÷ 3 - 18 + 3 × 2 = 18 ?

+ and ÷

+ and -

× and +

÷ and ×

Answer: ÷ and ×

Explanation:


9. Which two signs should be interchanged to make the following equation correct, 18 + 24 - 6 × 6 ÷ 3 = 39 ?

÷ and +

+ and -

÷ and -

× and +

Answer: ÷ and -

Explanation:


10. Which two signs should be interchanged in the following equation to make it correct, 24 ÷ 2 + 13 - 54 × 2 = 34 ?

+ and ×

- and ×

× and ÷

- and ÷

Answer: × and ÷

Explanation: