Question
The average of n numbers is 62. If each of 55% of
the numbers is increased by 18 and each of the remaining numbers is decreased by 12, then the new average of the numbers will beSolution
Avg. = 62 + ((55 x 18 - 45 x 12)/100) = 62 + 4.5 = 66.5
A seller purchases pears for Rs. 192 per dozen and sells each for Rs. 20. If he sells 5 dozen pears, how much profit does he earn in total?
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