Four years ago, the average age of a family of four persons was 18 years. During

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Four years ago, the average age of a family of four persons was 18 years. During this period, a baby was born. Today if the average age of the family is still 18 years, the age of the baby is

Options:

A . 1.2 years

B . 2 years

C . 2.5 years

D . 3 years

Answer: Option B

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Question 1. The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was....was 20 years. The present age of the husband is-

Question 2. Four years ago, the average age of A and B was 18 years. At present the average age of A, B, and C is 24 years. What wou....What would be the age of C after 8 years?

Question 3. The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If an....and E becomes 79 kg. The weight if A is-

Question 4. A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If had scored 92 points, the av....been 84. The number of points, the team scored was-

Question 5. A batsman makes a score of 84 runs in the 21st inning and thus increases his average by 2 runs. His average after 21st i....average by 2 runs. His average after 21st inning is-

Question 6. The average weight of 8 men is increased by 1.5 kg when one of the men, who weight 65 kg is replaced by a new man. The w....a new man. The weight of the new man is-

Question 7. When 15 is included in a list of natural numbers, their mean is increased by 2. When 1 is included in this new list, the....1. How many numbers were there in the original list?

Question 8. The average temperature of the town in the first four days of month was 58 degrees. The average for the second, third, f....8, then what is the temperature on the fifth day?

Question 9. The average marks in Science subject of a class of 20 students is 68. If the marks of two students were misread as 48 an....72 and 61 respectively, what would be the correct average?

Question 10. The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 1....six numbers is 11.4, then the middle number is :

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