Directions : Each of the questions below consists of a question and two statements numbered I and II given below it.You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements. What is the average age of family ? I. 5 members are in the family. The ratio of age of childs is 5 : 4 : 2. II. The younger child is 40 year less than his father and 35 year less than his mother and the age of father is 50 year.

Statement I only gives family size (5) and child age ratio (5:4:2), which is insufficient to find average age. Statement II gives father's age (50), younger child is 40 less than father (so child is 10) and 35 less than mother (so mother is 45). However, we don't know family size from II alone. Combining both: Family = 5, father = 50, mother = 45, younger child = 10. With child ratio 5:4:2 and youngest = 10, we get ages as 25, 20, 10. Total = 50+45+25+20+10 = 150, average = 150/5 = 30.