Question

Take Saloni's present age to be 'y' years.
a) What was her age 5 years back?
b) Saloni's grandfather is 7 times her age. What is the age of her grandfather?
c) Grandmother is four years younger than grandfather. What is grandmother's age?​

Answer 1

a)age 5yrs back =y-5

b) grandfather's age=7(y-5)

=7y-35

c) grandmother's age=7y-35-4

=7y-39