Question

The ratio between two quantities is 3:7 . If the second quantity is 133, find the first ---
(1)65
(2)57
(3)95
(4)105​

Answer 1

Answer:

(2) 57

Step-by-step explanation:

Let ratios be 3x and 7x

Given, 7x = 133

Solve for x

x = 133/7

x = 19

Substitute x value in first ratio

3x = 3(19) = 57

Answer 2

Let the first quantity be x.

According to condition,

3:7 = x:133

or, 3/7 = x/133

or, 7x = 133×3

or, 7x = 399

or, x = 399/7

or, x = 57.

Hence, the second quantity is (3) 57.