Oranges are bought at 11 for a rupee and an equal number more at 9 a rupee. If these are sold at 10 for a rupee, find the loss or gain percent?
A. 1% gain
B. 2% gain
C. 1% loss
D. 2% loss
A. 1% gain
B. 2% gain
C. 1% loss
D. 2% loss