If 5 varieties of rice costing Rs 10/kg, Rs 20/kg, Rs 30/kg, Rs 40/kg, Rs 50/kg are mixed in the ration a:b:2a:2b:a+b, and the mixture is sold at Rs 30/kg., then whch of the following can never be the profit/loss obtained

1) 21%loss
2) 1%loss
3) 21%profit
4) 1%profit