Problems on Averages - Aptitude Questions and Answers Part 4

16. In a group there are 80 women. The average age of a group of 20 women is 22 years while that of other group of 20 women is 24 years. Find the average age of remaining women if the average age of the complete group together is 20 years.

a. 17 years
b. 21 years
c. 25 years
d. 27 years


17. There are 47 boys in a picnic group. The average age of the group is 12 years. However, if the teacher is included in the group, the average age of the group increases by 6 months. Find the age of the teacher.

a. 35	1	years
	2

b. 36 years

c. 36	1	years
	2

d. 37 years


18. A group of girls decided to go to a nearby food joint and eat some snacks. They were prepared to spend Rs 96 on these snacks. However, some girls could not join because of an extra class and the remaining girls had to spend Rs 4 each extra. Find the number of girls who actually went to the food joint.

a. 6
b. 8
c. 12
d. 16


19. Consider the following information:

i. Four consecutive even number's average = 93.
ii. Sum of 7 consecutive odd numbers = 539.

What is the sum of 3^rd largest odd number and smallest even number?

a. 169
b. 627
c. 629
d. 631


20. Consider the following information:

i. Class V Sigma has boys and girls in the ratio 3:2.
ii. Average score of boys = 46
iii. Average score of class = 42

Find the average score of girls.

a. 36
b. 39
c. 40
d. 48