Question: By selling 5 dozen mangoes for Rs 156 it was found that 3/10 th of the outlay was gained. What should the retail price per mango be in order to gain 60%?

A: Rs 4
B: Rs 2
C: Rs 3.2
D: Rs 4.2

Ans: C
Solution: Let Cost price of mangoes is Rs x.
According to question
Selling price of one mango = 156/60
Now
x*(1+3/10)=156/60
x=2
Now retail price per mango be in order to gain 60%= 2*(1+60/100)
=3.2