Question
Average of five numbers is 12. But the average of three
of these is 10. The average of the rest two numbers isSolution
ATQ, Let's denote the sum of the five numbers as'S'and 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, let's consider the average of three of these numbers: A1 = 10 Sum of these three numbers:S1 = A1 × Number of terms = 10 × 3 = 30 
Therefore, the average of the remaining two numbers is 15
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