Business Administration (MBA) Interview Question:

Pencils are bought at 20 for a rupee and a same number of pencils at 25 for a rupee. If these are mixed and sold at 22 for a rupee, then the loss or gain % is:
1) loss of 0.99%
2) gain of 1.01%
3) gain of 1.50%
4) loss of 1.25%