Question

by what percente must be cost price be raised in fixing the sale price in order that there may be profit of 20% after allowing a commission of 10%

Answer 1

for example,

actual cost price = 100 rs.

allow commn = 10% of actual cost = 100 +10 =110 rs.

profit for this 110rs = 20% of 110 = 20/100*110 = 22rs.

that is for actual cost 100rs, 22rs to be included in order to get sale price with the above conditions.

Hence 22% of cost price to be raised in fixing sale price for this condition.