If you double a number and then add 1616 , you get two fifths 2 5 of the original number. what is the original number?

Question

Mathematics

Johnathon Costa

31 October, 08:02

If you double a number and then add 1616 , you get two fifths 2 5 of the original number. what is the original number?

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Answers (1)

Know the Answer?

Dean Turner · Answer 1

Let the original number be x.

Acc. to the question,

2x+1616 = (2/5) x

or, 10x+8080=2x

or, 10x-2x = - 8080

or, 8x = - 8080

or, x = - 8080/8

or, x = - 1010

Therefore, the original number is - 1010