Question
The average of 20 numbers is 50. If two numbers, 40 and
60, are removed, what is the new average?Solution
Sum of 20 numbers = 20 × 50 = 1,000. Sum of remaining numbers = 1,000 − (40 + 60) = 900. New average = 900 / 18 = 50. Thus, the correct answer is 50 . Ans. c
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