Question

If twice a number is diminished by 5 the result is 15 more than the number. Find the number

Answer 1

let the unknown number be x.
a/q          2x-5 = x+15
             ⇒  2x-x = 15 +5
             ∴ x = 20

so, the required number is 20.

Answer 2

Answer:

Step-by-step explanation:

Given :-

Twice a number is diminished by 5 the result is 15 more than the number

To Find :-

The Number

Solution :-

let the number be x.

According to question.

⇒ 2x - 5 = x + 15

⇒ 2x - x = 15 + 5

⇒ x = 20

Hence, the required number is 20.