The c.p of 21 articles is equal to s.p of 18 articles. find the gain or loss percent.

Given: Cost price of 25 articles is equal to the selling price of 20 articles. Formula used: Profit% = [(S.P – C.P)/C.P] × 100 Where, S.P = Selling Price, C.P = Cost Price Calculation: 25 C.P = 20 S.P ⇒ S.P/C.P = 5/4 Let the S.P and C.P be 5x and 4x respectively. Profit% = [(5x – 4x)/4x] × 100 ⇒ Profit% = (1/4) × 100 ⇒ Profit% = 25% ∴ The profit percentage is 25%.

12CP = 9SP ⇒ CP/SP = 9/12 = 3/4 CP = 3 and SP = 4 Profit = 4 - 3 = 1 Profit percentage = (1/3)× 100 = 33.33% Again 10D = 5P ⇒ D/P = 5/10 = 1/2 CP : SP : MP = 3 : 4 : 4.5 Discount = 4.5 - 4 = 0.5 Discount percentage = (0.5/4.5)× 100 = 11.11% ∴ Differance between dicount percentage and profit percentage = 33.33% - 11.11% = 22.22%

Views: 5,585 A = [ 4 0 ​ 5 − 1 ​ 0 3 ​ ] , B = [ 1 4 ​ 0 − 5 ​ − 1 6 ​ ] and C = [ 1 7 ​ 2 8 ​ 3 9 ​ ], then prove ( A + B ) + C = A + ( B + C ) and hence show that matrix addition is associative. Solution. A + B = [ 4 + 1 0 + 4 ​ 5 + 0 − 1 − 5 ​ 0 − 1 3 + 6 ​ ] = [ 5 4 ​ 5 − 6 ​ − 1 9 ​ ] \[ \begin \] From (1) and (2), we have ( A + B ) + C = A + ( B + C ) Hence matrix addition is associative. 3. If A = ⎣ ⎡ ​ 3 1 7 ​ 9 8 5 ​ 0 − 2 4 ​ ⎦ ⎤ ​ , B = ⎣ ⎡ ​ 4 7 2 ​ 0 1 2 ​ 2 4 6 ​ ⎦ ⎤ ​ ; verify that 2 ( A + B ) = 2 A + 2 B ow that scalar multiplication of matrices is distributive over the addition of matrices. A + B = [ 3 + 4 1 + 7 ​ 9 + 0 8 + 1 ​ 0 + 2 − 2 + 4 ​ ] = [ 7 8 ​ 9 9 ​ 2 2 ​ ] 2022/11/8 19 : 15

Profit and Loss is an important part of the Quantitative Aptitude section. Profit and loss is part and parcel of every business. If the selling price of a product exceeds its cost price or production price, then a profit is made. If the selling price of a product is less than its cost price, then a loss is incurred. Every business man wants to earn profit at the end of the financial year but not necessary he earns profit. 1. The profit obtained by selling an article for Rs. 56 is the same as the loss obtained by selling it for Rs. 42. What is the cost price of the article? a. Rs. 40 b. Rs. 50 c. Rs. 49 d. None of these 2. The C.P of 21 articles is equal to S.P of 18 articles. Find the gain or loss percent. a. 10% b. 18 1/ 3% c. 16 2/ 3 d. 20% 3. An article is sold at a certain price. By selling it at 2/3 of that price one loses 10%. Find the gain percent at original price. a. 15% b. 35% c. 25% d. 50% 4. A man bought a horse and a carriage for Rs. 3000. He sold the horse at a gain of 20% and the carriage at a loss of 10%, thereby gaining 2% on the whole. Find the cost of the horse. a. 2200 b. 1800 c. 1200 d. 1000 5. The price of a jewel, passing through three hands, rises on the whole by 65%. If the first and second sellers earned 20% and 25% profit respectively, find the percentage profit earned by the third seller. a. 10% b. 22% c. 18% d. 12% 6. At what percentage above the C.P must an article be marked so as to gain 33% after allowing a customer a discount of 5%? a. 38% ...

Problem 1 : A man buy an article for $27.50 and sells it for $28.60. Find his profit percent. Problem 2 : If a camera is purchased for $490 and sold it for $465.50, find the loss percent. Problem 3 : By selling 33 meters of cloth, one gains the selling price of 11 meters. Find the profit percent. Problem 4 : A person incurs 5% loss by selling a laptop for $1140. At what price should the laptop be sold to earn 5% profit ? Problem 5 : The cost price of 21 articles is equal to S.P of 18 articles. Find the profit or loss percent. Problem 6 : A man bought candies at 3 for a dollar. How many for a dollar must he sell to earn a profit of 50% ? Problem 7 : If the cost price is 96% of the selling price, then what is the profit percent ? Problem 8 : An article is sold at a certain price. By selling it at 2/3 of that price, one loses 10%. Find the profit percent at original price. Solutions Problem 1 : A man buy an article for $27.50 and sells it for $28.60. Find his profit percent. Solution : Given : Cost price = $27.50 Selling price = $28.60 Finding Profit : Profit = Selling price - Cost price Profit = 28.60 - 27.50 Profit = 1.10 Finding Profit Percent : Profit percent = (Profit/Cost price) ⋅ 100 % Profit percent = (1.10/27.50) ⋅ 100 % Profit percent = 4 % Problem 2 : If a camera is purchased for $490 and sold it for $465.50, find the loss percent. Solution : Given : Cost price = $490 Selling price = $465.50 Finding Loss : Loss = Cost price - Selling price Loss = 490 - 465.50 Loss ...

Categories • • (31.9k) • (8.8k) • (764k) • (248k) • (10.0k) • (5.6k) • (36.3k) • (7.5k) • (10.7k) • (11.8k) • (11.2k) • (6.8k) • (4.9k) • (5.3k) • (2.8k) • (19.9k) • (936) • (2.9k) • (5.2k) • (664) • (121k) • (72.1k) • (3.8k) • (19.6k) • (1.4k) • (14.2k) • (12.5k) • (9.3k) • (7.7k) • (3.9k) • (6.7k) • (63.8k) • (26.6k) • (23.7k) • (14.6k) • (25.7k) • (530) • (84) • (765) • (49.1k) • (63.8k) • (1.8k) • (59.3k) • (24.5k)