Oranges are bought at 5 for ₹ 10 and sold at 6 for ₹ 15. The profit percent is:

Correct option is D

Given:

Cost price (C.P.) of 5 oranges = ₹10

Selling price (S.P.) of 6 oranges = ₹15  

Solution: 

5 oranges cost price =Rs. 10   

30 oranges cost price = Rs. 60 

Selling price of 6 oranges = Rs.15 

Selling price of 30 oragnges =Rs. 75  

Profit percentage = $$\frac{(75-60)}{60} \times 100= 25 \%$$​​