let raj be 3 years older than ravi and hema be two years younger than ravi . raj is 3 times as old as rahul who is hema ’ s brother . the ratio of the ages of hema and her brother is 3 : 2 . find by how much percentage raj ’ s age is more than hema ’ s when raj will be 20 years old .
answer : 33.33
multiply(divide(add(3, const_2), add(subtract(multiply(3, divide(add(3, const_2), subtract(3, divide(3, 2)))), add(3, const_2)), subtract(20, multiply(3, divide(add(3, const_2), subtract(3, divide(3, 2))))))), const_100)