advertisements
1 .
The average age of 80 boys in a class is 15. The average age of a group of 15 boys in the class is 16 and the average age of another 25 boys in the class is 14. What is the average age of the remaining boys in the class ?
[ A ]    15.25 right
[ B ]    14
[ C ]    14.75
[ D ]    Cannot be determined
[ E ]    None of these
Answer : Option A
Explanation :

advertisements
500
Write your Comment or Discuss..
    Log in | Sign up

    Copyright 2019-2020 | Privacy Policy | Terms and Conditions | Contact us | Advertise