SSC GD (RATIO) NUMERICAL APTITUDE QUIZ

Question 1:

If $(a+b):(b+c):(c+a)=8: 7: 5$ and $a+b+c=60$ is, then $a: b: c$ what will happen?

$5: 7: 8$

$3: 5: 2$

$5: 6: 7$

$4: 5: 6$

Question 2:

The average of six numbers A, B, C, D, E and F is 58 . If the first number A is two-fifth of the sum of B and C, and is also equal to three-fourth of the sum of D, E and F, then what is the value of the sum of B and C ?

180

360

116

240

Question 3:

The present ages of A and B are 36 and 50 years respectively, if after k years the ratio of their ageswill be 3 : 4, then the value of k is:

3

4

6

7

Question 4:

Length of a rectangle is $3 \mathrm{~cm}$ more than width of rectangle and the difference between area of circle and area of rectangle is $84 \mathrm{~cm}^{2}$. Fiind the length of rectangle if radius of circle is $7 \mathrm{~cm}$.

$8 \mathrm{~cm}$

$10 \mathrm{~cm}$

$7 \mathrm{~cm}$

$14 \mathrm{~cm}$

Question 5:

Ratio of age of Aditya and Vaibhav after 6 years is $17: 24$ and the difference between their age is 14 years. Find the present age of Aditya.

26 years

28 years

27 years

23 years

Question 6:

The volume of a cone is $144 \pi$ cm$^{3}$. If its height is twice the radius of its base, then what will be the curved-surface area (in cm$^2$) of the cone?

$72 \sqrt{5} \pi$

$36 \sqrt{10} \pi$

$36 \sqrt{5} \pi$

$27 \sqrt{10} \pi$

Question 7:

When $x$ is added to each of $6,12,18$ and 28, the numbers obtained in this sequence are in a proportion. What will be the value of $(5 x-8):(x+4)$?

$31: 9$

$7: 2$

$8: 3$

$13: 4$

Question 8:

Which two symbols should be interchanged to balance the given equation?

$14-7 \div 2+9 \times 3=3$

$\times \text { and }-$

$\times \text { and }+ $

$+ \text { and }\div$

$\div \text { and } \times$

Question 9:

The total number of gold medals and silver medals won by India in the Games is 85. Which of the following cannot be the ratio between the number of silver medals won by India and the number of gold medals?

$2: 3$

$12: 13$

$9: 8$

$12: 5$

Question 10:

The ratio between the perimeter and length of a rectangle is 5 : 2. If the area of the rectangle is $256$ cm$^{2}$, then what will be the width (in cm) of the rectangle?

9

8

10

6