Question

Fifteen years from now David's age will be four times his present age. what is the David's present age ?

Answer 1

let David's age be x.

After 15 years his age is = (15+x)

His age is 4x =15+x

4x-x=15

3x=15

x=15/3

x=5.

therefore his age after 15 years =15+x=15+5.

=20.

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Answer 2

hey, your answer is here
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