[" 12.Fifleen years from now Ravi's age will be four times his provent ope "],[" present age? "]

Fifteen years from now Ravi's age will be four times his present age. What is Ravi's present age?

Fifteen years from now.Ravi's age will be four times his present age.What is Ravi's present age?

Fifteen years from now Ravis age will be four xx his present age.What is Ravis present age?

Fifteen years from now Ravi’s age will be four times his present age. What is Ravi’s present age?

Fifteen years from now Ravi’s age will be four times his present age. What is Ravi’s present age?

After 15 years, Mary's age will be four times of her present age. Find her present age.

Two years ago, a man's age was three times the square of his son's age. In three years time, his age will be four times his son's age. Find their present ages.