Question

Three years ago poorvi was thrice as old as his sister reena.After three years poorvi will be twice as old as reena. What is the present age of reen​

Answer 1

Answer:

let the present age of reena be x

three years ago ages°

reena= x - 3

poorvi = 3(x - 3)

from here

x - 3 = 3(x - 3)

x - 3 = 3x - 9

3x - x = 9-3

2x = 6

x = 6/2 = 3

therefore present age of reena = 3 years