If five varieties of rice, costing र10/kg, र20/kg, र30/kg, र40/kg and र50/kg, are mixed in the ratio *a* : 2a : *b* : 2b : *a* + _b_respectively, and the mixture is sold at र30/kg, then which of the following can never be the profit/loss obtained…

If five varieties of rice, costing र10/kg, र20/kg, र30/kg, र40/kg and र50/kg, are mixed in the ratio *a* : 2a : *b* : 2b : *a* + *b*respectively, and the mixture is sold at र30/kg, then which of the following can never be the profit/loss obtained?

1) 21%loss

2) 1% loss

3) 21%profit

4) 1%profit