1.

Two numbers are in the ratio 3 ∶ 5. If 12 is added to both the numbers, then the ratio becomes 5 ∶ 7. The sum of the given two numbers is 1. 482. 563. 324. 40

Answer» Correct Answer - Option 1 : 48

Given:

The ratio of two numbers = 3 ∶ 5

Calculation:

Let the two number be 3x and 5x respectively

Now, A/Q

(3x + 12)/(5x + 12) = 5/7

⇒ 7(3x + 12) = 5(5x + 12)

⇒ 21x + 84 = 25x + 60

⇒ 25x – 21x = 84 – 60

⇒ 4x = 24

⇒ x = 6

The numbers are 18 and 30

Sum = 18 + 30 = 48

∴ The sum of the given number is 48



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