Comprehension and Problem Solving-Problems on Ages [CAT (Common Admission Test for IIMs) Quantitative Aptitude to Quantitative Aptitude (QA)]: Questions 1 - 4 of 7

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Question 1

Question MCQ▾

In a class of 20 students, the average age is 20 years. On the addition of another 2 students, the average age increases to 21 years. Find the age of the other student, if one of them is 31 years.

Choices

Choice (4)Response

a.

432 years

b.

429 years

c.

431 years

d.

430 years

Edit

Question 2

Question MCQ▾

Rohan and his dad were calculating the ratio of their ages. Currently Rohan՚s dad is four times as old as Rohan. Eight years later, Rohan՚s dad will be two and half times of Rohan՚s age. What will be the ratio of age of Rohan and Rohan՚s dad 32 years later?

Choices

Choice (4)Response

a.

4: 7

b.

8: 5

c.

7: 4

d.

5: 8

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Question 3

Question MCQ▾

Ages of member of Akali Dal & BJP are in the ratio of 7: 4. If new members are added in the group of Akali Dal and the new ratio becomes 2: 1. Also, total age of BJP members is 520 years, find the average age of the two new members who have joined the party recently?

Choices

Choice (4)Response

a.

63 yrs

b.

62 yrs

c.

61 yrs

d.

None of the above

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Question 4

Question MCQ▾

A family of three people- father, mother, and son was there. Four years before, on the son՚s marriage, the average age of father, mother and son was years. After a year of marriage, son was blessed with twins - a baby boy and a baby girl. years after their birth, average of family is years. Find the age of the mother of the twins during the time of her marriage?

Choices

Choice (4)Response

a.

25

b.

30

c.

24

d.

10

Edit