Q. A man sales an article at 10% gain. Had he sold at for Rs. 60 more he could have gained 20%. What is the C.P of the article.
Ans. The Formula is as under.
C.P = more gain X 100 = 60 X 100 = 600 Rs
Diff in profit 10
Q. A merchant who marked his goods up by 50% subsequently offered a discount of 20% .What is the percentage profit that the merchant make after offering the discount.
Ans. The Formula is as under.
Profit Percent =
The negative values(-20) are because there is a discount.
Q. A shopkeeper marks his goods at 20% above the C.P and allow of 10% discount.
Find the profit percent.
Ans. The Formula is as under.
Profit Percent = 
= 
= 8%
Q. If the cost of petrol increases by 40%.By what percent the person should reduce the consumption considering expenditure on petrol remains same.
Ans. The Formula is as under.
Decrease in consumption =
= 
= 
percent
Q. If the cost of petrol decreases by 10%.By what percent the person should increase the consumption considering expenditure on petrol remains same.
Ans. The Formula is as under.
Increase in consumption =
= 
= 
percent
Q. A man sold two cows at Rs. 1995 each. One he lost 10% and on the other he gained 10%. What is his gain or loss percent.
Ans. The Formula is as under.
Loss Percent =
= 
= 1 %
There is always loss if the loss and gain percentages are same.
Q. A shopkeeper marks the price of his goods 20% higher than the original price. Then he gives 20% discount on goods.Find his profit or loss percent.
Ans. The Formula is as under.
Loss Percent = = 
= 4%
Q. What price should a shopkeeper mark on an article costing him Rs. 153 to get
20% profit after allowing discount of 15%.
Ans. The Formula is as under.
M.P =
= 
= 216
Q. 'A' sells a good to 'B' at a profit of 15%. 'B' Sells it to 'C' at a profit of 20%.
What is the resultant profit.
Ans. The Formula is as under.
Positive answer shows Profit
Negative answer shows Loss
Q. If the cost of petrol increases by 40%.By what percent the person should reduce the consumption considering expenditure on petrol remains same.
Ans. The Formula is as under.
Decrease in consumption =
Q. If the cost of petrol decreases by 10%.By what percent the person should increase the consumption considering expenditure on petrol remains same.
Ans. The Formula is as under.
Increase in consumption =
Q. A man sold two cows at Rs. 1995 each. One he lost 10% and on the other he gained 10%. What is his gain or loss percent.
Ans. The Formula is as under.
Loss Percent =
There is always loss if the loss and gain percentages are same.
Q. A shopkeeper marks the price of his goods 20% higher than the original price. Then he gives 20% discount on goods.Find his profit or loss percent.
Ans. The Formula is as under.
Loss Percent =
Q. What price should a shopkeeper mark on an article costing him Rs. 153 to get
20% profit after allowing discount of 15%.
Ans. The Formula is as under.
M.P =
Q. 'A' sells a good to 'B' at a profit of 15%. 'B' Sells it to 'C' at a profit of 20%.
What is the resultant profit.
Ans. The Formula is as under.
Resultant Profit = = 
= 38%
Q. A merchant professes to sell goods at 20% profit ,but he uses weight of 900 gm in place of a Kilogram. What is his profit percentage.
Ans. The Formula is as under.
Profit Percent =\times&space;\frac{1000}{900}-100 "(100+20)\times \frac{1000}{900}-100")
= 
Q. A merchant professes to sell goods at 20% profit ,but he uses weight of 900 gm in place of a Kilogram. What is his profit percentage.
Ans. The Formula is as under.
Profit Percent =
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