Question

Rohan is half his fathers age . 20 years ago father was 6 times older than rohan . Find their present ages

Answer 1

Let the present age of rohans father bex
So present age of rohan is x/2
A. To. Q
20 years before
x-20=6(x/2-20)
x-20=3x-120
x-3x=-120+20
-2x=-100
x=50
So rohan's father present age is 50 and rohan is 25 years

Answer 2

Concept

A math word problem is a math question written as one or more sentences that requires children to apply their math knowledge to "real life".

Given

It is given that Rohan is half his fathers age . 20 years ago father was 6 times older than Rohan .

Find

We need to find the present age of Rohan's father and Rohan

Solution

Let the present age of Rohan's father be x years

Rohan is half his fathers age

Therefore, present age of Rohan if x/2 years

20 years ago age of Rohan's father was (x-20) years and Rohan's age was (x/2 -20) year

20 years ago father was 6 times older than Rohan .

(x-20) = 6(x/2 -20)

x-20= 3x - 120

3x -x = 120-20

2x = 100

x =100/2

x= 50 years

Rohan's present age is x/2 = 50/2 = 25 years

Hence present age of Rohan's father is 50 years and present age of Rohan is 25 years

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