# Selina solutions for Concise Mathematics Class 8 ICSE chapter 8 - Profit, Loss and Discount [Latest edition]

## Chapter 8: Profit, Loss and Discount

Exercise 8 (A)Exercise 8 (B)Exercise 8 (C)Exercise 8 (D)Exercise 8 (E)Exercise 8 (F)
Exercise 8 (A) [Page 90]

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 8 Profit, Loss and Discount Exercise 8 (A) [Page 90]

Exercise 8 (A) | Q 1 | Page 90

Megha bought 10 note-books for Rs.40 and sold them at Rs.4.75 per note-book. Find, her gain percent.

Exercise 8 (A) | Q 2 | Page 90

A fruit-seller buys oranges at 4 for Rs.3 and sells them at 3 for Rs.4 Find his profit percent.

Exercise 8 (A) | Q 3 | Page 90

A man buys a certain number of articles at 15 for Rs. 112.50 and sells them at 12 for Rs.108. Find ;
(i) his gain as percent;
(ii) the number of articles sold to make a profit of Rs.75.

Exercise 8 (A) | Q 4 | Page 90

A boy buys an old bicycle for Rs. 162 and spends Rs. 18 on its repairs before selling the bicycles for Rs. 207. Find his gain or loss percent.

Exercise 8 (A) | Q 5 | Page 90

An article is bought from Jaipur for Rs. 4,800 and is sold in Delhi for Rs. 5,820. If Rs. 1,200 is spent on its transportations, etc. ; find he loss or the gain as a percent.

Exercise 8 (A) | Q 6 | Page 90

Mohit sold a T.V. for Rs. 3,600; gaining one-sixth of its selling price. Find :
(i) the gain
(ii) the cost price of the T.V.
(iii) the gain percent.

Exercise 8 (A) | Q 7 | Page 90

By selling a certain number of goods for Rs. 5,500; a shopkeeper loses equal to one-tenth of their selling price. Find :
(i) the loss incurred
(ii) the cost price of the goods
(iii) the loss as a percent.

Exercise 8 (A) | Q 8 | Page 90

The selling price of a sofa-set is 4/5 times of its cost price. Find the gain or the loss as a percent.

Exercise 8 (A) | Q 9 | Page 90

The cost price of an article is 4/5 times of its selling price. Find the loss or the gain as a percent.

Exercise 8 (A) | Q 10 | Page 90

A shopkeeper sells his goods at 80% of their cost price. Find the percent gain or losses?

Exercise 8 (A) | Q 11 | Page 90

The cost price of an article is 90% of its selling price. What is the profit or the loss as a percent ?

Exercise 8 (A) | Q 12 | Page 90

The cost price of an article is 30 percent less than its selling price. Find, the profit or loss as a percent.

Exercise 8 (A) | Q 13 | Page 90

A shop-keeper bought 300 eggs at 80 paise each. 30 eggs were broken in a transaction and then he sold the remaining eggs at one rupee each. Find, his gain or loss as a percent.

Exercise 8 (A) | Q 14 | Page 90

A man sold his bicycle for Rs.405 losing one-tenth of its cost price, find :
(i) its cc price;
(ii) the loss percent.

Exercise 8 (A) | Q 15 | Page 90

A man sold a radio-set for Rs.250 and gained one-ninth of its cost price. Find ;
(i) its cost price;
(ii) the profit percent.

Exercise 8 (B) [Page 93]

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 8 Profit, Loss and Discount Exercise 8 (B) [Page 93]

Exercise 8 (B) | Q 1.1 | Page 93

Find the selling price, if:
C.P. = Rs. 950 and profit = 8%

Exercise 8 (B) | Q 1.2 | Page 93

Find the selling price, if:
C.P. = Rs. 1,300 and loss = 13%

Exercise 8 (B) | Q 2.1 | Page 93

Find the cost price, if :
S.P. = Rs. 1,680 and profit = 12%

Exercise 8 (B) | Q 2.2 | Page 93

Find the cost price, if :
S.P. = Rs. 1,128 and loss = 6%

Exercise 8 (B) | Q 3 | Page 93

By selling an article for Rs.900; a man gains 20%. Find his cost price and the gain.

Exercise 8 (B) | Q 4 | Page 93

By selling an article for Rs.704; a person loses 12%. Find his cost price and the loss.

Exercise 8 (B) | Q 5.1 | Page 93

Find the selling price, if :
C.P. = Rs.352; overheads = Rs.28 and profit = 20

Exercise 8 (B) | Q 5.2 | Page 93

Find the selling price, if :
C.P. = Rs.576; overheads = Rs.44 and loss = 16%

Exercise 8 (B) | Q 6 | Page 93

If John sells his bicycle for Rs. 637, he will suffer a loss of 9%. For how much should it be sold, if he desires a profit of 5%?

Exercise 8 (B) | Q 7 | Page 93

A man sells a radio-set for Rs.605 and gains 10%. At what price should he sell another radio of the same kind, in order to gain 16%?

Exercise 8 (B) | Q 8 | Page 93

By selling a sofa-set for Rs.2,500; the shopkeeper loses 20%. Find his loss percent or profit percent; if he sells the same sofa-set for Rs.3150.

Exercise 8 (B) | Q 9 | Page 93

Mr. Sinha sold two tape-recorders for Rs.990 each; gaining 10% on one and losing 10% on the other. Find his total loss or gain as a percent on the whole transaction.

Exercise 8 (B) | Q 10 | Page 93

A tape-recorder is sold for Rs. 2,760 at a gain of 15% and a C.D. player is sold for Rs. 3,240 at a loss of 10% Find :
(i) the C.P. of the tape-recorder
(ii) the C.P. of the C.D. player.
(iii) the total C.P. of both.
(iv) the total S.P. of both
(v) the gain % or the loss % on the whole

Exercise 8 (B) | Q 11 | Page 93

Rajesh sold his scooter to Rahim at 8% loss and Rahim, in turn, sold the same scooter to Prem at 5% gain. If Prem paid Rs. 14,490 for the scooter; find :
(i) the S.P. and the C.P. of the scooter for Rahim
(ii) the S.P. and the C.P. of the scooter for Rajesh

Exercise 8 (B) | Q 12 | Page 93

John sold an article to Peter at 20% profit and Peter sold it to Mohan at 5% loss. If Mohan paid Rs.912 for the article; find how much did John pay for it?

Exercise 8 (C) [Page 95]

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 8 Profit, Loss and Discount Exercise 8 (C) [Page 95]

Exercise 8 (C) | Q 1 | Page 95

A stationery buys pens at 5 for Rs.28 and sells them at a profit of 25 %. How much should a customer pay; if he buys
(i) only one pen ;
(ii) three pens?

Exercise 8 (C) | Q 2 | Page 95

A fruit-seller sells 4 oranges for Rs. 3, gaining 50%. Find :
(i) C.P. of 4 oranges,
(ii) C.P. of one orange.
(iii) S.P. of one orange.
(iv) profit made by selling one orange.
(v) a number of oranges brought and sold in order to gain Rs. 24.

Exercise 8 (C) | Q 3 | Page 95

A man sells 12 articles for Rs. 80 gaining 33 1/3%. Find the number of articles bought by the man for Rs. 90.

Exercise 8 (C) | Q 4 | Page 95

The cost price of 20 articles is the same as the selling price of 16 articles. Find the gain percent.

Exercise 8 (C) | Q 5 | Page 95

The selling price of 15 articles is equal to the cost price of 12 articles. Find the gain or loss as a percent.

Exercise 8 (C) | Q 6 | Page 95

By selling 8 pens, Shyam loses equal to the cost price of 2 pens. Find his loss percent.

Exercise 8 (C) | Q 7 | Page 95

A shop-keeper bought rice worth Rs.4,500. He sold one-third of it at 10% profit.
If he desires a profit of 12% on the whole; find :
(i) the selling price of the rest of the rice ;
(ii) the percentage profit on the rest of the rice.

Exercise 8 (C) | Q 8 | Page 95

Mohan bought a certain number of note-books for Rs.600. He sold 1/4 of them at 5 percent loss. At what price should he sell the remaining note-books so as to gain 10% on the whole?

Exercise 8 (C) | Q 9 | Page 95

Raju sells a watch at a 5% profit. Had he sold it for Rs.24 more; he would have gained 11%. Find the cost price of the watch.

Exercise 8 (C) | Q 10 | Page 95

A man sold a bicycle at 5% profit. If the cost had been 30% less and the selling price Rs.63 less, he would have made a profit of 30%. What is the cost price of the bicycle?

Exercise 8 (C) | Q 11 | Page 95

Renu sold an article at a loss of 8 percent. Had she bought it at 10% less and sold for Rs.36 more; she would have gained 20%. Find the cost price of the article.

Exercise 8 (D) [Page 98]

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 8 Profit, Loss and Discount Exercise 8 (D) [Page 98]

Exercise 8 (D) | Q 1 | Page 98

An article is marked for Rs. 1,300 and is sold for Rs. 1,144; find the discount percent.

Exercise 8 (D) | Q 2 | Page 98

The marked price of a dinning table is Rs. 23,600 and is available at a discount of 8%. Find its selling price.

Exercise 8 (D) | Q 3 | Page 98

A wrist-watch is available at a discount of 9%. If the list-price of the watch is Rs. 1,400; find the discount is given and the selling price of the watch.

Exercise 8 (D) | Q 4 | Page 98

A shopkeeper sells an article for Rs. 248.50 after allowing a discount of 10%. Find the list price of the article.

Exercise 8 (D) | Q 5 | Page 98

A shop-keeper buys an article for Rs.450. He marks it at 20% above the cost price. Find :
(i) the marked price of the article.
(ii) the selling price, if he sells the articles at 10 percent discount.
(iii) the percentage discount given by him, if he sells the article for Rs.496.80

Exercise 8 (D) | Q 6 | Page 98

The list price of an article is Rs.800 and is available at a discount of 15 percent. Find :
(i) selling price of the article ;
(ii) cost price of the article, if a profit of 13 1/3 % is made on selling it.

Exercise 8 (D) | Q 7 | Page 98

An article is marked at Rs. 2,250. By selling it at a discount of 12%, the dealer makes a profit of 10%. Find :
(i) the selling price of the article.
(ii) the cost price of the article for the dealer.

Exercise 8 (D) | Q 8 | Page 98

By selling an article at a 20% discount, a shopkeeper gains 25%. If the selling price of the article is Rs. 1,440 ; find :
(i) the marked price of the article.
(ii) the cost price of the article.

Exercise 8 (D) | Q 9 | Page 98

A shopkeeper marks his goods at 30 percent above the cost price and then gives a discount of 10 percent. Find his gain percent.

Exercise 8 (D) | Q 10 | Page 98

A ready-made garments shop in Delhi, allows a 20 percent discount on its garments and still makes a profit of 20 percent. Find the marked price of a dress which is bought by the shop-keeper for Rs.400.

Exercise 8 (D) | Q 11 | Page 98

At 12% discount, the selling price of a pen is Rs. 13.20. Find its marked price. Also, find the new selling price of the pen, if it is sold at 5% discount.

Exercise 8 (D) | Q 12 | Page 98

The cost price of an article is Rs. 2,400 and it is marked at 25% above the cost price. Find the profit and the profit percent, if the article is sold at a 15% discount.

Exercise 8 (D) | Q 13 | Page 98

Thirty articles are bought at Rs. 450 each. If one-third of these articles be sold at a 6% loss; at what price must each of the remaining articles be sold in order to make a profit of 10% on the whole?

Exercise 8 (D) | Q 14 | Page 98

The cost price of an article is 25% below the marked price. If the article is available at a 15% discount and its cost price is Rs. 2,400; find:
(i) Its marked price
(ii) its selling price
(iii) the profit percent.

Exercise 8 (D) | Q 15.1 | Page 98

Find a single discount (as a percent) equivalent to following successive discounts:
20% and 12%

Exercise 8 (D) | Q 15.2 | Page 98

Find a single discount (as a percent) equivalent to following successive discounts:
10%, 20% and 20%

Exercise 8 (D) | Q 15.3 | Page 98

Find a single discount (as a percent) equivalent to following successive discounts:
20%, 10% and 5%

Exercise 8 (D) | Q 16.1 | Page 98

Find the single discount (as a percent) equivalent to successive discounts of:
80% and 80%

Exercise 8 (D) | Q 16.2 | Page 98

Find the single discount (as a percent) equivalent to successive discounts of:
60% and 60%

Exercise 8 (D) | Q 16.3 | Page 98

Find the single discount (as a percent) equivalent to successive discounts of:
60% and 80%

Exercise 8 (E) [Page 101]

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 8 Profit, Loss and Discount Exercise 8 (E) [Page 101]

Exercise 8 (E) | Q 1 | Page 101

Rajat purchases a wrist-watch costing Rs 540. The rate of sales tax is 8%. Find the total amount paid by Rajat for the watch.

Exercise 8 (E) | Q 2 | Page 101

Ramesh paid Rs 345.60 as sales tax on a purchase of Rs 3,840. Find the rate of sales tax.

Exercise 8 (E) | Q 3 | Page 101

The price of a washing machine, inclusive of sales tax is Rs 13,530/-. If the sales tax is 10%, find its basic cost price.

Exercise 8 (E) | Q 4 | Page 101

Sarita purchases biscuits costing Rs 158 on which the rate of sales tax is 6%. She also purchases some cosmetic goods costing Rs 354 on which the rate of sales tax is 9%. Find the total amount to be paid by Sarita.

Exercise 8 (E) | Q 5 | Page 101

The price of a T.V. set inclusive of sales tax of 9% is Rs 13,407. Find its marked price. If sales tax is increased to 13%, how much more does the customer has to pay for the T.V.?

Exercise 8 (E) | Q 6 | Page 101

The price of an article is Rs 8,250 which includes sales tax at 10%. Find how much more or less does a customer pay for the article, if the sales tax on the article:

(i) increases to 15%
(ii) decreases to 6%
(iii) increases by 2%
(iv) decreases by 3%

Exercise 8 (E) | Q 7 | Page 101

A bicycle is available for Rs 1,664 including sales tax. If the list price of the bicycle is Rs 1,600, find :

(1) the rate of sales tax.

(2) the price, a customer will pay for the bicycle if the sales tax is increased by 6%.

Exercise 8 (E) | Q 8 | Page 101

When the rate of sale-tax is decreased from 9% to 6% for a coloured T.V.; Mrs. Geeta will save Rs 780 in buying this T.V. Find the list price of the T.V.

Exercise 8 (E) | Q 9 | Page 101

A shopkeeper sells an article for Rs. 21384 including 10% sales tax. However, the actual rate of sales tax is 8%. Find the extra profit made by the dealer.

Exercise 8 (F) [Page 104]

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 8 Profit, Loss and Discount Exercise 8 (F) [Page 104]

Exercise 8 (F) | Q 1 | Page 104

Some goods/services cost Rs. 16,000 and the rate of GST on them is 12%. Find the amount of the bill, in the case of:

1. intra-state transaction.
2. inter-state transaction.
Exercise 8 (F) | Q 2 | Page 104

John belongs to Delhi. He buys goods, worth Rs. 25,000 from a shop in Delhi. If the rate of GST is 5%, find how much money in all, will Does John pay for these goods?

Exercise 8 (F) | Q 3 | Page 104

Find the amount of bill for the following inter-state transaction of goods/services:
Cost of transaction = 30,000; discount = 30% and GST=28%.

Exercise 8 (F) | Q 4 | Page 104

For both the following inter-state transaction of services, find the total amount of bill.
(i) Cost of services = 5,000, discount = 20% and GST = 12%
(ii) Cost of services = 12,500, discount = 40% and GST = 18%

Exercise 8 (F) | Q 5 | Page 104

A shopkeeper in Indore sells 20 identical articles for ₹450 each. Find the amount of bill if he gives a 20% discount and then charges GST = 28%

Exercise 8 (F) | Q 6 | Page 104

A dealer in Bihar supplied goods to a dealer in Mumbai. The dealer in Mumbai buys :
(i) 40 articles for 800 each at 30% discount
(ii) 75 articles for 1,000 each at 20% discount.

If the rate of GST, on the whole, is 12%, find how much will the dealer at Mumbai pay to a dealer in Bihar.

## Chapter 8: Profit, Loss and Discount

Exercise 8 (A)Exercise 8 (B)Exercise 8 (C)Exercise 8 (D)Exercise 8 (E)Exercise 8 (F)

## Selina solutions for Concise Mathematics Class 8 ICSE chapter 8 - Profit, Loss and Discount

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Concepts covered in Concise Mathematics Class 8 ICSE chapter 8 Profit, Loss and Discount are Overhead Expenses, To Find S.P., When C.P. and Gain (Or Loss) Percent Are Given, To Find C.P., When S.P. and Gain (Or Loss) Percent Are Given, Concept of Discount, Computation of Tax, Goods and Service Tax (Gst), Gst Comprises of, Concept of Discount.

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