Mathematical Reasoning Questions and Answers
The ratio of the present ages of Veeru and Sunita is 14:17 respectively. After 6 years from now the ratio of their ages will be 17:20, then what is the present age of Sunita -
(A) 34 years
(B) 21 years
(C) 68 years
(D) 17 years
Correct Answer : A
Which two signs and two numbers should be interchanged in the following equation to make it correct?
150 × 15 + 14 – 9 ÷ 2 =6
(A) 9, 2, −, ×
(B) 9, 2, ÷, ×
(C) 150, 2, ÷, −
(D) 15, 9, +, ÷
Correct Answer : B
Which of the following interchange of numbers and mathematical signs would make the given equation correct?
30 ÷ 6 × 4 + 15−35 = 25
(A) 25 and 30, × and−
(B) 4 and 6, + and−
(C) 25 and 35, × and ÷
(D) 30 and 35, −and ÷
Correct Answer : C
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
17 * 11 * 42 * 2 * 7 = 18
(A) - , +, ÷, ÷
(B) -, +, ×, ÷
(C) -, +, ×, ×
(D) +, -, +, ×
Correct Answer : B
By interchanging the given two signs and numbers which of the following equation will be correct?
+ and –, 2 and 4
(A) 9 – 5 ÷ 4 × 2 + 8 = 80
(B) 7 × 4 – 2 ÷ 1 + 5 = 13
(C) 7 – 8 ÷ 2 + 16 × 4 = 18
(D) 5 + 7 × 4 – 8 ÷ 2 = 5
Correct Answer : B
By interchanging the given two signs which of the following equation will be not correct?
+ and –
(A) 18 ÷ 3 + 8 × 5 – 4 = 30
(B) 4 × 6 + 7 – 3 ÷ 1 = 20
(C) 18 + 8 × 6 ÷ 3 – 11 = 13
(D) 6 × 9 + 7 – 8 ÷ 2 = 51
Correct Answer : A
Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
25 * 5 * 10 * 2 * 13
(A) ÷, ×, −, =
(B) ÷, −, +, =
(C) ×, +, −, =
(D) ÷, +, −, =
Correct Answer : D
By interchanging the given two signs which of the following equation will be not correct?
– and ÷
(A) 20 × 8 – 4 ÷ 2 + 7 = 50
(B) 35 – 5 + 8 ÷ 4 × 3 = 3
(C) 10 + 8 × 6 – 4 ÷ 2 = 20
(D) 12 – 4 + 11 × 3 ÷ 8 = 28
Correct Answer : A
By interchanging the given two signs and numbers which of the following equation will be correct?
× and ÷, 7 and 9
(A) 9 – 7 × 2 + 6 ÷ 3 = 11
(B) 9 + 4 × 3 – 7 ÷ 1 = 40
(C) 8 × 3 ÷ 6 + 9 – 7 = 14
(D) 9 × 3 + 4 ÷ 2 – 7 = 18
Correct Answer : C
By interchanging the given two signs which of the following equation will be not correct?
+ and –
(A) 8 ÷ 4 × 6 + 5 – 9 = 16
(B) 15 + 3 × 4 – 6 ÷ 2 = 6
(C) 3 × 2 – 72 ÷ 6 + 8 = 18
(D) 3 + 4 – 2 × 5 ÷ 1 = 9
Correct Answer : C
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