By selling 15 mangoes, a fruit vendor recovers the cost price of 20 mangoes. The profit per cent is

Let CP of 1 Mango is Rs. 1

CP of 15 Mango is Rs. 15

On selling 15 Mango profit is CP of 20 mango Hence CP of 15 Mango is 15 + 20 = 35

Hence SP of 1 Mango = 7/3

Solution:

Let the C.P of 20 mangoes = S.P of 15 mangoes = Rs.100

So, the C.P of 1 mango = 100/20 = Rs.5

The S.P of 1 mango = 100/15 = Rs.6.67

Profit = S.P - C.P

Profit = 6.67 - 5

Profit = Rs.1.67

Profit percentage =( Profit/C.P)×100

= (1.67/5) × 100

= 33.4%

So, the correct option is 3). 33.3%