1.

A number is doubled and 9 is added. If the resultant is trebled it becomes 75. What is the number?1. 122. 103. 84. 14

Answer» Correct Answer - Option 3 : 8

Given:

Double of number + 9 = resultant

Thrice of resultant = 75

Calculation:

Let the number be x

⇒ 2x + 9 = resultant 

3(2x + 9) = 75

⇒ 6x + 27 = 75 

⇒ 6x = 75 – 27

⇒ 6x = 48

⇒ x = 48/6

⇒ x = 8

∴ The number is 8



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