1. The average of 50 numbers is 38. If two numbers, namely 45 and 55 are discarded, the average of the remaining numbers is
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By: anil on 05 May 2019 01.53 am
Average = $$frac{Sum of Elements}{Number of Elements}$$ Given that Initially Number of Elements = 50 Initial Average = 38 Sum of Elements = 50 x 38 = 1900 Now as two numbers are discarded, hence number of elements left = 48 Sum of elements after discarding numbers = 1900 - 55 - 45 = 1800 Hence New Average = $$frac{1800}{48}$$ = 37.5
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