Rahul had 200 mangoes. He sold 30 mangoes at 25% gain, 40 mangoes at 20% gain, 60 mangoes at 10% gain and 70 mangoes at 10% loss. His net gain/loss percentage is

A

$$7 \%$$ gain

B

$$7 \%$$ loss

C

$$7 \frac{1}{4} \%$$ gain

D

$$7 \frac{1}{4} \%$$ loss