Question

please answer first one​

Answer 1

let the age of riyaz be x and age of his mother be 7x

after 4 yrs

age of riyaz =x+4

age of mother =7x +4

According to the question

7x+4=4(x+4)

7x +4=4x+16

7x-4x=16-4

3x =12

x=12/3

4

present age of riyaz =4yrs

present age of mother =7×4

28yrs

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