A fruit seller purchased 50 kg of mangoes at the rate of ₹ 22 perkilo. He sold some of the mangoes at the rate of ₹ 30 per kilo and the rest at the rate of ₹ 20 per kilo. If he incurred 25% profit overall, the amount of mangoes that can be sold at the rate of ₹ 20 per kilo is

A

12.5 kg

B

37.5 kg

C

25 kg

D

20.5 kg