The average of 50 numbers is 38. If two numbers namely 45 and 55 are discarded, the average of the remaining number is:

36.50

37.50

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উত্তর: 37.50

Average for 50 number is 38. The total is = 38×50 = 1900 The total of discarded number is = 45 + 55 = 100 Hence the total for 48 number is = 1900 - 100 = 1800 So, The new average is = 1800÷48 = 37.5 ans: 37.5

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