Question

Grandmother is 80 years old and sonu is 20 years old how many years ago was his grandmother 7 times as old as sonu​

Answer 1

Answer:

10 years ago.

Step-by-step explanation:

Let the no. of years be x.

Grandmother's age x years ago was = 80-x

Sonu's age x years ago was = 20-x

According to the problem:

(80-x) = 7(20-x)

x = 10