Question

After 6 years raju's father's age will be twice that of the his age and 2 years ago, his mothers age was twice that of raju's age. What is the sum of raju's parents' age?

Answer 1

Step-by-step explanation:

let raju's age be x years, his father age be y years and his mother age be z years.

y+6 = 2(x+6) --------------(1)

z-2 = 2(x-2)------------(2)

y+6 = 2x + 12

y = 2x + 6

2x =y-6 ------------(3)

z = 2x-4+2

z = 2x-2

2x = z+2 -------------(4)

from 3 and 4,

y-6 = z+2

y-z = 8