Quantitative Ability (S.A.) Test

Result

Quantitative Ability (S.A.) Test - 3

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Weekly Quiz Competition

Question 1
4 / -1

Find the missing term in the given series.

4, ?, 16, 125, 36, 343, 64

A
9

B
12

C
27

D
81

Solution

The pattern here is,

4 = 2²

27 = 3³

16 = 4²

125 = 5³

36 = 6²

343 = 7³

64 = 8²

Therefore, the missing term is 27.

Hence, the correct option is (C).
Question 2
4 / -1

10 years ago, the ratio of the age of Sunil and Sona was 5 : 6. After 5 years, the ratio of the age of Sunil and Sona is 8 : 9. What is the ratio of the present age of Sunil and Sona?

A
5 : 7

B
7 : 8

C
6 : 7

D
4 : 7

Solution

It is given that,

10 years Ago, the ratio between Sunil and Sona = 5 : 6

After 5 years, the ratio between Sunil and Sona = 8 : 9

Suppose, 10 years ago, the age of Sunil and Sona is 5x and 6x, respectively.

The present age of Sunil = (5x + 10) years

The present age of Sona = (6x + 10) years

After 5 years, the age of Sunil = (5x + 15) years

After 5 years, the age of Sona = (6x + 15) years

Therefore, according to the question,

(5x + 15)(6x + 15) = 89

⇒ 45x + 135 = 48x + 120

⇒ 3x = 15

⇒ x = 5

The present age of Sunil = (5x + 10) = 35 years

The present age of Sona = (6x + 10) = 40 years

The ratio between the present age of Sunil and Sona = 35 : 40 = 7 : 8

Hence, the correct option is (B).
Question 3
4 / -1

Digits do not carry their value but allotted artificial value. Their artificial values are allotted according to some pattern. Examine the figures and values and write a serial number of the correct answers on the answer sheet.

If 2 + 3 + 4 = 040924; 3 + 4 + 5 = 091660; 4 + 5 + 2 = 162540, then 7 + 1 + 8 = ?

A
490164

B
490156

C
496456

D
490165

Solution

2 + 3 + 4 = 2² 3² 2 × 3 × 4 = 040924

So, 7 +1 + 8 = 7² 1² 7 × 1 × 8 = 490156

Hence, the correct option is (B).
Question 4
4 / -1

y is a positive integer and x = y -1/y. As y increases, x

A
increases

B
decreases

C
No change

D
Cannot be determined

Solution

As y increases, 1/y decreases. Since y is a positive integer and 1/v is being subtracted from it, the lesser that 1/y gets. (y - 1/y)

becomes greater. Hence, x will increase.
Question 5
4 / -1

A borrower pays 18% interest per year on the first Rs.600 he borrowed and 17% per year on the part of the loan in excess of Rs. 600. How much interest will the borrower pay on a loan of Rs.6,000 for 1 year?

A
Rs.926

B
Rs.1080

C
Rs.1026

D
Rs.1126

Solution
Question 6
4 / -1

In terms of percentage profit, which among the following is the best transaction?

A
C.P = 36, profit = 17

B
C.P = 50, profit = 24

C
C.P = 40, profit = 19

D
C.P = 60, profit = 29

Solution

Among given 4 option, D has highest percentage of profit. So, (D) is the best transaction.
Question 7
4 / -1

Two numbers A and B are such that the sum of 5% of A and 4% of B is 2/3rd of the sum of 6% of A and 8% of B. Find the ratio of A : B.

A
4/3

B
3/4

C
1

D
2/3

Solution
Question 8
4 / -1

If two coins are tossed, then what is the probability that at least one head will occur?

A
1/4

B
3/4

C
1/2

D
3/2

Solution
Question 9
4 / -1

Four options have been given out of which three are alike in some manner, while one is different. Choose the odd one.

A
2442

B
3773

C
4545

D
6776

Solution

Here, all except 4545 have two same digits in the middle.

Hence, the correct option is (C).
Question 10
4 / -1

If the price of a certain product is first decreased by 35% and then increased by 20%, then what is the net change in the price of the product?

A
22%

B
20%

C
25%

D
30%

Solution