Quiz on Math Set 270

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Quiz on Math Set 270 :

Question 1 :

If 0.75: x :: 5:8, then x is equal to
A. 1.12
B. 1.16
C. 1.20
D. 1.30

Correct Ans: Option C

Question 2 :

A, B, C started a business with their investments in the ratio 1:3 :5. After 4 months, A invested the same amount as before and B as well as C withdrew half of their investments. The ratio of their profits at the end of the year is
A. 1 : 2 : 3
B. 3 : 4 : 15
C. 3 : 5 : 10
D. 5 : 6 : 10

Correct Ans: Option D

Question 3 :

If the average age of four children is 12 years and the average age of these children and their father is 20 years, what is the age of the father ?
A. 52 years
B. 48 years
C. 62 years
D. 54 years

Correct Ans: Option A

Question 4 :

The average age of a husband and his wife was 23 years at the time of their marriage. After five years they have a one year old child. The average age of the family now is
A. 29.3 years
B. 19 years
C. 23 years
D. 28.5 years

Correct Ans: Option B

Question 5 :

Three years ago, the average age of a family of 5 members was 17 years. A baby having been born the average age of the family is the same today. The present age of the baby (in years) is
A. 2
B. 2.4
C. 3
D. 1.5

Correct Ans: Option A

Question 6 :

After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. The difference between the ages of the replaced and the new members is
A. 2 years
B. 4 years
C. 8 years
D. 15 years

Correct Ans: Option D

Question 7 :

The average age of a cricket team of 11 players is the same as it was 3 years back because 3 of the players whose current average age of 33 years were replaced by 3 youngsters. The average age of the newcomers is
A. 23 years
B. 21 years
C. 22 years
D. 20 years

Correct Ans: Option C

Question 8 :

A man had 7 children. When their average age was 12 years, a child aged 6 years died. The average age of remaining six children is
A. 13 years
B. 10 years
C. 11 years
D. 14 years

Correct Ans: Option A

Question 9 :

3 years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is same today. The present age of the baby is
A. 1 year
B. 1.5 year
C. 2 years
D. 3 years

Correct Ans: Option C

Question 10 :

Five years ago, the average age of P and Q was 25. The average age of P, Q and R today is 25. Age of R after 5 years will be
A. 15 years
B. 20 years
C. 40 years
D. 35 years

Correct Ans: Option B

Quiz Summary


Here the correct answers of every question in this quiz.

Q.1 [C],     Q.2 [D],     Q.3 [A],     Q.4 [B],     Q.5 [A],     Q.6 [D],     Q.7 [C],     Q.8 [A],     Q.9 [C],     Q.10 [B],    


Total Questions: 10
Your score:
Subject: Math
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