Question

Present age of Rohan's father is four times Rohan's age.Five years hence,his age will be 21 years more than Rohan's age at that time. Find their present ages?

Answer 1

Let Rohan's age be y

Let his father's age be x

Case 1

X = 4y

Case 2

X+5 = y+5+21

= x-y =21

Sub x=4y

4y-y = 21

3y = 21

Therefore, y = 7

X = 4x7 = 28

Answer 2

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$~~~~~~~\color{green}\mathbb{HERE \: IS \: YOUR \: ANSWER}$

refer to the photo.
the age of rohan's father is 28
and rohan' s age is 7

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