Question

Arjun is twice as old as Shriya. Five years ago his age was three times Shriya age. Find their present ages.​

Answer 1

Answer:

let arjun age=A

let shruya age=S

A=2S

A-5=3(S-5)

2S-5=3S-15

S=10

A=20

10,20 ARE PRESENT AGES

Answer 2

let present age of Arjun be 'A'

present age of Shriya be 'S'

given Arjun is twice as old as Shriya..hence

A=2S--------(1)

5yr agi Arjun age is thrice shriya age..hence

(A-5)=(3S-15)-------(2)

From eq(1) A=2S..put in eq(2)

(2S-5)=(3S-15)

(3S-2S)=(15-5)

S=10 years..

hence A=2S=20years