Answer:
11) 83.3%
12) 12.5%
13) Rs 200
14) Rs 200
15) Rs 750
Step-by-step explanation:
11) loss: 1 - β = β of the cost price
Percentage loss:
β Γ 100 = 83.3%
12) loss is β of the cost price
Percentage loss:
β Γ 100 = 125%
13) Profit = 20% of 1000
20/100 Γ 1000 = 200
14) Profit = 10% of 2000
10/100 Γ 2000 = 200
15) Loss = 15% of 5000
15/100 Γ 5000 = 750