Average of20 number is8.If two nimbers 12 and 10 are discarded;the average of remaining set of numbers will be?
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Find the sum of the 20 numbers:
Average = 8
Sum = 8 x 20 = 160
Find the sum after discarding 12 and 10:
Sum = 160 - 12 - 10 = 138
Find the average of the remaining 18 cards:
Sum = 138
Average = 138 ÷ 18 =23/3
Answer: The average of the remaining set of numbers is 23/3
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