renu mother is 4 times as old as renu. after five years her mother will be three times as old as she will be. find their present ages

Answer: renu is 10 years old and her mother is 40 years old.

Step-by-step explanation:

let renu be x years old

then her mother would be 4x years

after 5 years her age would be x+5 years

and her mother would be 3 (x+5)

equating the ages

3 (x+5) = 4x+5

3x+15-5=4x

3x+10=4x

4x-3x=10

x=10 years

renu is 10 years old and her mother is 40 years old. after5 years renu would be 15 years and her mother would be 45 years old