Question

farhan buys 200kg of onions at rs 12 per kg.10%of the onions were spoiled.find sp if he wants to have a profit of 40% on cp

Answer 1

Total cost price of the onions:

1 kg = Rs 12

200 kg = Rs 2400

Find the amount of onion for sales:

10% Spoiled =  0.1 x 200 = 20 kg

200 - 20 = 180 kg

Find the expected selling price:

Expected profit of 1 kg of onion = 40% x Rs = 0.4 x 12 = Rs 4.80

Expected selling price of 1 kg of onion = 12 + 4.80 = Rs 16.80

Expected selling price of 200 kg onion = 16.80  x 200 = Rs 3360

Find the selling price of 1 kg of onion:

Selling price = 3360 ÷ 180 = Rs 18.67

Answer: The selling price of 1 kg of onion is Rs 18.67

Answer 2

Given

Farhan bought 200kg onions at Rs 12 per kg

1 kg = Rs 12

200 kg = 200 x 12 = Rs 2400 .

Cost price = 2400

Given

10% onions were spoiled -

200 x 10/100 = 20

200 - 20 = 180 kg

Given

Profit % = 40%

Finding selling price

selling price = cost price + profit %

2400 + 2400 x 40%

2400 + 2400 x 0.4

2400 + 960

3360. .

Finding selling price per kg

180 kg = 3360

1 kg = 3360 ÷ 180 = 18.66

Selling price per kg = Rs 18.66

$\bold{Answer \: selling \: price \: per \: kg \: is \: Rs18.66 \: }$