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Lesson On Profit And Loss

Padmini R.
20/11/2017 0 0

i. Cost Price: The price, at which an article is purchased, is called its cost price, abbreviated as C.P.

ii. Selling Price: The price, at which an article is sold, is called itsselling prices, abbreviated as S.P.

iii. Profit or Gain: If S.P. is greater than C.P., the seller is said to have a profit or gain.

iv. Loss: If S.P. is less than C.P., the seller is said to have incurred a loss.

 

Important Formulae:

  • Gain % = (Gain / CP) * 100
  • Loss % = (Loss / CP) * 100
  • SP = [(100 + Gain%) / 100] * CP
  • SP = [(100 – Loss %) / 100] * CP
  • CP = [100 / (100 + Gain%)] * SP
  • CP = [100 / (100 – Loss%)] * SP

Solved Examples:

Question 1: An article is purchased for Rs. 450 and sold for Rs. 500. Find the gain percent.

Solution:

Gain = SP – CP = 500 – 450 = 50.

Gain% = (50/450)*100 = 100/9 %

 

Question 2: A man sold a fan for Rs. 465. Find the cost price if he incurred a loss of 7%.

Solution:

CP = [100 / (100 – Loss %)] * SP

Therefore, the cost price of the fan = (100/93)*465 = Rs. 500

 

Question 3: In a transaction, the profit percentage is 80% of the cost. If the cost further increases by 20% but the selling price remains the same, how much is the decrease in profit percentage?

Solution:

Let us assume CP = Rs. 100.

Then Profit = Rs. 80 and selling price = Rs. 180.

The cost increases by 20% → New CP = Rs. 120, SP = Rs. 180.

Profit % = 60/120 * 100 = 50%.

Therefore, Profit decreases by 30%.

 

Question 4: A man bought some toys at the rate of 10 for Rs. 40 and sold them at 8 for Rs. 35. Find his gain or loss percent.

Solution:

Cost price of 10 toys = Rs. 40 → CP of 1 toy = Rs. 4.

Selling price of 8 toys = Rs. 35 → SP of 1 toy = Rs. 35/8

Therefore, Gain = 35/8 – 4 = 3/8.

Gain percent = (3/8)/4 * 100 = 9.375%

 

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