Question

My grandfather was 3 times my age 5 years ago. After 5 years he will be 4 times bigger than me, what is the ratio of my and grandfather's age.​

Answer 1

there ration will be 3:5

Answer 2

Answer:

Step-by-step explanation:

Let the age of grandfather be x and your age by y.

Then,

x-5 = 3(y-5) => x-3y = 20

and x+5 = 4(y+5) => x-4y = 15

subtracting both equations.

y = 5.

x = 20 + 3y = 20+15 = 45.

Ratio = 45/5 = 9:1