SSC CGL QUANT REVISION QUIZ-3

Question 1:

Solutions A and B contain acid and water in the ratio 3: 5 and 9: 7, respectively. Solution A and B are mixed in the ratio 2: 3. What is the ratio of acid and water in the resulting solution ?

9 : 11

19 : 21

39 : 41

37 : 43

Question 2:

Simplify the following expression.
$(-5)$ of $(-45) \div(-15)-(-3)+5 \times \frac{1}{15}$

$18 \frac{1}{3}$

$-11 \frac{2}{3}$

$3 \frac{74}{225}$

$3 \frac{2}{15}$

Question 3:

What is the average of eight smallest even natural numbers which are NOT divisible by 3 ?

12

11

9

8

Question 4:

If a:b = 9:7, then what is (11a - 9b) : (2a + 3b) ?

12 : 13

54 : 13

4 : 21

4 : 13

Question 5:

What is the total surface area of a hemispherical solid having radius $14 \mathrm{~cm}$ ? (Use $\pi=\frac{22}{7}$ )

$1232 \mathrm{~cm}^2$

$616 \mathrm{~cm}^2$

$2352 \mathrm{~cm}^2$

$1848 \mathrm{~cm}^2$

Question 6:

A car was sold for ₹ 66,000 at a gain of 10 %. Had it been sold for ₹ 600 more, then the percentage gain would have been :

15 %

13 %

11.5 %

11 %

Question 7:

If the sum of the simple interest on ₹ 16,400 for 3 years at the rate of interest R and that on ₹ 18,000 for 4 years at the same rate R is ₹ 10,302, then the value of R will be:

8 %

9 %

10.5 %

8.5 %

Question 8:

A 320 m long train crosses a platform thrice its length in 90 seconds. What is the speed (in km/h) of the train ?

48

54

50.4

51.2

Question 9:

The value of $25-4$ of $(14.4 \div 9)+16 \times 0.4$ is :

5

0

25

20

Question 10:

Six years ago, the ratio of the ages of A and B was 17: 13, and the ratio of their present ages is 5: 4. What will be the ratio of their ages after 4 years from now ?

4 : 3

3 : 2

9 : 5

11 : 9