Question

raju is 10 years old.his sister is 3 years 4 months younger than him.how old is his sister ?​

Answer 1

Answer:

Hey!

Raju's age = 10

Sister's age = 3 years 4 months younger than Raju's age

ie. Raju's age - 3 years 4 months  = Sister's age

1 year = 12 months

So if Raju is 10 years old = 12 x 10 = 120 months  

and Sister's age value = 3 years 4 months = (3 x 12) + 4 = 36 + 4 = 40 months

Sister's age = Raju's monthly age - Sister's monthly age value

                   = 120 months - 40 months

                   = 80 months or approx. 6 years 6 months

Hope it helped u!