Wipro Company Numerical Ability Averages

The average age of 30 students of a class is 12 years. The average age of a group of 5 of the students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students ?

a. 8 years
b. 10 years
c. 12 years
d. 14 years

Read Solution (Total 2)

c) 12 years
initially sum=30*12=360
first group = 5*10=50
second group=5*14
remaining = 360-(50+70)=240
avg=240/20=12
11 years agoHelpfull: Yes(2) No(0)

c) 12 years
initially sum=30*12=360
first group = 5*10=50
second group=5*14
remaining = 360-(50+70)=240
avg=240/20=12
5 years agoHelpfull: Yes(0) No(0)

Wipro Other Question

A man spends Rs. 1800 monthly on an average for the first four months and Rs. 2000 monthly for the next eight months and saves Rs. 5600 a year. His average monthly income is :

a. Rs. 2000
b. Rs. 2200
c. Rs. 2400
d. Rs. 2600 A class has two sections, in one of which there are 40 students with an average of 14.5 years. The average of the class is 14.2 years. If there be 32 students in the other section, its average age is :

a. 13.5 years
b. 13.6 years
c. 13.7 years
d. None