Question

Father says my son is five times older than my daughter. My wife is 5 times older that my son. I am twice old from my wife and altogether (sum of our ages) is equal to my mother's age and she is celebrating her 81 birthday. So what is my son's age?

Answer 1

daughter age is =x
son age is =x+5
wife age is= 5(x+5)
father age = 5×2(x+5)
10(x+5)=81 ,10x+50=81. 10x=80-50

10x=30

Answer 2

Step-by-step explanation:

let daughter's age be x

son's age= 5x

wife's age=25x

his age= 50 x

sum= 81= x+5x+25x+50x

hence, x=1

now daughter's age is x=1

sons' age is 5x=5

son is 5 years old