List of top Quantitative Ability and Data Interpretation Questions on Average asked in CMAT

Average of a, b and c is 11; average of c, d and e is 17; average of e and f is 22 and average of e and c is 17.What is the average of a, b, c, d, e and f?

In a batch of 50 students has ratio of Boys to Girls as 4:6. Average marks of Girls are 60 and Average marks of the batchis 62. Average Marks of Boys will be:

In a company there are 252 engineers, in which the ratio of the number of electronics engineers and computer engineers is 2: 1. The ratio of the number of electronics engineers and computer engineers becomes 1 : 1 after recruitment of some more computer engineers. The average age of all the engineers is now 22 years and the average age of the computer engineers is 2 years less than the average age of electronics engineers.
(A) The average age (in years) of electronics engineers is 21
(B) The average age (in years) of computer engineers is 21 
(C) The average age (in years) of electronics engineers is 23 
(D) The average age (in years) of electronics engineers is 25  
(E) The average age (in years) of computer engineers is 23 Choose the correct answer from the options given below:

In a company, the average salary of the boy is Rs. 50000. The average salary of all the employees is Rs. 48000. There are 80 boys in the company and the average salary of the girl is Rs. 40000. What is the number of girls working in the company?