Question

a shopkeeper bought 50 dozen bananas at the rate of 50 rupees per dozen.. if 72 of them were found rotten find the rate per dozen he should sell to gain 10 percent on whole transaction

Answer 1

hope it should be right!

Answer 2

Total price at which he purchased 50 dozen banana = 50*50=2500
72 banana are rotten ==> 6 dozens are rotten
now he is left with 44 dozens to be sold
Now 2500/100*110=2750 To earn 10 % profit he will have to sell 44 dozen at 2750
Therefore 2750/44= 62.5
Rs 62.5--> at which he will sell banana per dozen to earn 10 % profit.