9 added to twice a number gives 13. Find the number. – InterviewSolution

InterviewSolution

1.

9 added to twice a number gives 13. Find the number.

Answer»

Let the number be x.

So, twice of the number = 2x

On adding 9 to it, we get 2x + 9

∴ 2x + 9 = 13

⇒ 2x = 13 – 9 = 4

⇒ x = 4/2 = 2

Thus, x = 2 is the required number.

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