The sum of present ages of a mother and daughter is 99 years. When the mother was as old as the present age of daughter is now, her age was 4 times to the age of her daughter at that time. The ratio of present age of mother and daughter is?
Answer & explanation
Correct answer: option 2
Mother : Daughter
Present: x : y
Before* y : 2y - x
*(when mother was as old as her daughter is now)
Now, ATQ,
⇒ y = 4 ( 2y - x )
⇒ 4x = 7y
⇒ x : y = 7 : 4