Question

Average of five numbers is 12. But the average of three of these is 10. The average of the rest two numbers is

Q: Answer-Average of five numbers is 12. But the average of three of these is 10. The average of the rest two...

ATQ, Lets denote the sum of the five numbers asSand their average as A. Original average of five numbers A 12 Original sum of five numbers S A Number of terms 12 5 60 Now, lets consider the average of three of these numbers A1 10 Sum of these three numbersS1 A1 Number of terms 10 3 30 Therefore, the average of the remaining two numbers is 15