Question

A grandfather is ten times older than his granddauters .he is also 54 years older than her.find their present age

Answer 1

let age of granddaughter =x
according to question.
case1 grandfather 's age =10x
case2 grandfather age =x+54
from case 1$2
10x=x+54
9x=54
x =6
hence grandfather age =10x
10×6 OR 54+6
60

Answer 2

let the age of granddaughter be x then according to question
the age of grandfather will be= 10x
and the difference between their age is =54
so
10x -x =54
9x = 54
x = 6
i.e age of granddaughter is =6 years
And age of grandfather = 10×6= 60 years