. By selling 45 kg sugar, a shopkeeper gainequal to SP of 5 kg sugar.

1.	. By selling 45 kg sugar, a shopkeeper gainequal to SP of 5 kg sugar. Find his gain%.
Answer» Selling Price = Cost Price + Profit (SP = CP + P) Profit on sale of 45 kg sugar = Selling Price of 5 kg sugar : 45P = 5(C + P) ⇒ 45P = 5C + 5P ⇒ 45P - 5P = 5C ⇒ 40P = 5C ⇒ P/C = (5*100)/40 ⇒ P/C = 500/40 ⇒ 12.5 % So, profit margin on Cost Price is 12.5 %

. By selling 45 kg sugar, a shopkeeper gainequal to SP of 5 kg sugar. Find his gain%.

Answer»

Selling Price = Cost Price + Profit (SP = CP + P)

Profit on sale of 45 kg sugar = Selling Price of 5 kg sugar : 45P = 5(C + P)

⇒ 45P = 5C + 5P

⇒ 45P - 5P = 5C

⇒ 40P = 5C

⇒ P/C = (5*100)/40

⇒ P/C = 500/40

⇒ 12.5 %

So, profit margin on Cost Price is 12.5 %