Question

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Write basic questions based on Profit and loss?
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1) Consumption exberditure based
2) If the price of the commodity decreases by r% them percentage increase in
Consumption, so as not decrease experditure on this item is.
3) In the reduction of x%
euables a person to by y Kg more for A, then the reduced price and original price Calculation.
4) Successive profitloss.
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Neat Answer​

Answer 1

Step-by-step explanation:

Type-1: Consumption – expenditure based

If the price of an item increases by r% ,then the percentage reduction in consumption so that expenditure remains the same ,is

Question 1: If price of sugar increases by 20% ,then the percentage reduction in consumption so that expenditure remains the same will be ?

Solution: To find the percentage reduction in consumption, apply formula

(20/120)x100=50/3%

Type-2: If the price of a commodity decreases by r% then percentage increase in consumption , so as not to decrease expenditure on this item is

Question 2: If the price of sugar falls down by 10% ,by how much percent must a householder increase its consumption , so as not to decrease expenditure in this item ?

Solution: To find the percentage increase in consumption, apply formula:-

{10/(100-10)} x 100 = 100/9%

Type-3: If a reduction of x% in price enables a person to buy y kg more for Rs A, then the

Question 3: A reduction of 10% in the price enables a person to buy 2 kg more wheat for Rs 30.Find the reduced and the original price of wheat.

Solution:

Reduced Price = (x/100y)A

{(30 x 10)/(100 x 2)} Rs. = Rs. 3/2

Original Price = [x/{(100-x)y}] x A

[(30 x 10)/{(100 – 10)x2}] = Rs. 5/3

Type-4: Successive profit / loss

When there are two successive profits of x% and y% then the net percentage profit =[x+y+xy/100]

When there is a profit of x% and loss of y% then net percentage profit or loss = [x – y – xy/100]

Note: If the final sign in the above expression is positive then there is net profit but if it is negative then there is net loss.

Question 4: A sells an item at a profit of 20% to B and B sells it to C at a profit of 10%. Find the resultant profit percent .

Solution: When there are two successive profit of x% and y% , net profit percentage

= {x+y+(xy/100)}

= 20+ 10 + {(20 x 10)/100} = 32%

Question 5: A sells an item at a profit of 20%to B and B sells it to C at a loss of 10%.find the resultant profit percent.

Solution: When there are two successive profit of x% and y% net profit percentage = [x – y – xy/100]

=[20 – 10 – {(20 x 10)/100}] = 8%

Type-5: Goods passing through successive hands

A sells goods to B at a profit of x% and B sells it to C at a profit of y%. If C pays Rs. x for it, then the cost price for A is Rs

profit-and-loss-Discounts-and-Marked-Price-12

Question 6: A sells a good to B at a profit of 20% and B sells it to C at a profit of 25%.If C pays Rs 222 for it, calculate the cost price for A is

Solution: Applying Formula

profit-and-loss-Discounts-and-Marked-Price-12

(222 x 100 x 100)/(120 x 125)} = Rs. 148

Note :- For loss replace plus sign with minus .

Type-6: When each of the two things is sold at the same price,and a profit of p% is made on the first and a loss of L% is made on the second ,then the percentage gain or loss is:

Question 7. Each of the two cars is sold at the same price. A profit of 20% is made on the first and a loss of 10% on second.calculate loss/gain %.

Apply formula :-

[{100(20 – 10)-2 x 20 x 10}/{(100+20)+(100-10)}] = 20/7%

Question 8. Two items are sold for Rs 200.The first one is sold at 20% profit and second one at 20% loss. What is the % loss or gain ?

Solution : Apply Formula

As percentage profit is equal to percentage loss so put P=L, we get,%loss = P2/100

=> %loss = (20)2/100 = 4%

Type-7: If cost price of x things is equal to the selling price of y articles, then profit percentage = (x-y/y)*100%

Example 9: The cost price of 18 articles is equal to the selling price of 15 articles. The gain per cent is :

Solution: Profit Percentage : (x-y/y)*100%

Gain percentage : {(18 – 15)/15} x 100

= 3/15 x 100 = 20%

Example 10: The cost price of 25 articles is equal to selling price of 20 ar­ticles. The gain percent is

Solution:

Profit percentage = (x-y/y) * 100%

%Gain = {(25-20)/20} x100 = 5/20 x 100 = 25%

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Answer 2

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➳ The Consumer spending is the total money spent on final goods and services by individuals and households for personal use and enjoyment in an economy.

➳ The reduction formula can be applied to different functions including trigonometric functions like sin, cos, tan, etc., exponential functions, logarithmic functions, etc