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The average of 50 numbers is 75. If the average of first set of 25 numbers is 65, then what is the average of the second set of 25 numbers? |
105 95 85 75 |
85 |
Let Average of 2nd set of 25 numbers = A ATQ , 25 × 65 + 25 × A = 50 × 75 1625 + 25A = 3750 25A = 2125 A = 85 So , Average of 2nd set of 25 numbers = 85 |
