Q11. Eighteen years ago, a father was three times as old as his son. Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is :
Question 12
Q12. The age of father 10 years ago was thrice the age of his son. 10 years hence, father's age will be twice that of his son. The ratio of their present ages is :
Question 13
Q13. The sum of the present ages of a father and his son is 60 years. 6 years ago, father's age was five times the age of the son. After 6 years, son's age will be ?
Question 14
Q14. Rajan got married 8 years ago, His present age is 6/5 times his age at the time of his marriage. Rajan's sister was 10 years younger to him at the time of his marriage. The age of Rajan's sister is :
Question 15
Q15. The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child ?
