1.

If x ∶ y = 3 ∶ 2 and x + y = 90, then the value (x - y) is :1. 142. 183. 164. 12

Answer» Correct Answer - Option 2 : 18

Given:

x : y = 3 : 2

x + y = 90

Calculation:

Let us take the value of x and y be 3a and 2a

x + y = 3a + 2a 

⇒ 3a + 2a = 90

⇒ 5a = 90 

⇒ a = 18

⇒ x = 3a = 54 

⇒ y = 2a = 36

⇒ x - y = 54 - 36 = 18

 ∴ The value (x - y) is 18



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