TLDR;
This YouTube video by Rojgar with Ankit provides a comprehensive one-shot revision of profit and loss concepts with 40-42 questions, including easy and exam-oriented problems updated for 2024. The session includes mock tests and detailed analysis to ensure students are well-prepared for their exams. The instructor emphasizes understanding the basics and encourages students to complete their initial studies before using the one-shot video for revision.
- Focus on profit and loss concepts
- Includes updated questions for 2024 exams
- Encourages understanding of basics before revision
Introduction [0:08]
The instructor greets the students and introduces the topic of profit and loss, stating that the session will cover approximately 40 to 42 questions ranging from easy to exam-level difficulty. The questions are updated for the 2024 exams and include all relevant types. The session will consist of two mock tests, followed by an analysis of the scores. The instructor assures that the questions are highly relevant and likely to appear in the exams.
Importance of Understanding Basics [1:57]
The instructor stresses the importance of understanding the basic concepts of profit and loss before watching the one-shot video. He advises students who have not yet studied the chapter to complete it first, as the video is intended for revision and recall. Watching the video without prior knowledge may be a waste of time.
Question 1: Calculating Profit Percentage [3:02]
The first question involves calculating the profit percentage when a shirt with a cost price of ₹900 is sold for ₹1050. The profit is ₹150, and the profit percentage is calculated as (150/900) * 100, which equals 16.66%. The instructor reminds students that profit and loss percentages are always calculated on the cost price.
Question 2: Calculating Loss Percentage Including Repair Costs [5:05]
Rohit buys a bat for ₹2320 and spends ₹180 on repairs. He then sells it for ₹2400. The total cost price is ₹2320 + ₹180 = ₹2500. The loss is ₹2500 - ₹2400 = ₹100. The loss percentage is (100/2500) * 100 = 4%. The instructor emphasizes that maintenance and transportation costs are included in the purchase price.
Question 3: Determining Profit Percentage from Cost Price and Selling Price Ratio [6:48]
The cost price of an item is 5/8 of its selling price. The instructor explains two methods to determine the ratio of cost price to selling price. The cost price is ₹5 and the selling price is ₹8. The profit is ₹3. The profit percentage is (3/5) * 100 = 60%.
Question 4: Calculating Profit Percentage with Selling Price as a Percentage of Cost Price [9:34]
The selling price of an item is 95% of the cost price. If the selling price is assumed to be ₹100, the cost price is ₹95. The profit is ₹5. The profit percentage is (5/95) * 100 ≈ 5.26%. The instructor advises using option elimination to save time in exams.
Question 5: Calculating Selling Price with a Given Profit Percentage [12:08]
An item is sold at a profit of 200%. If the cost price is ₹100, the selling price is ₹100 + ₹200 = ₹300. The instructor explains that the selling price is calculated by adding the profit percentage to 100.
Question 6: Profit Percentage Calculation [14:38]
The selling price of 100 pens is ₹140, which is equal to the cost price of 40 pens. The ratio of cost price to selling price is 5:7. The profit is ₹2. The profit percentage is (2/5) * 100 = 40%.
Question 7: Profit or Loss Percentage Calculation [16:54]
The marked price of 85 articles equals the cost price of 153 articles. The selling price of 104 articles equals the marked price of 65 articles. The instructor explains how to create ratios and combine them to find the overall profit or loss percentage. The profit percentage is 12.5%.
Question 8: Finding Cost Price and Selling Price Ratio [20:34]
If 7% of the selling price equals 8% of the cost price, and 9% of the selling price is ₹2 more than 10% of the cost price, find the cost price and selling price. The instructor explains how to form the ratio and use the given conditions to find the correct option.
Question 9: Calculating Profit Percentage with Given Selling Price and Profit [25:38]
By selling a 33-meter long pipe, a man earns a profit equal to the cost price of an 11-meter long pipe. The instructor explains how to calculate the profit percentage by setting up the equation: Selling Price - Cost Price = Profit. The profit percentage is 33.33%.
Question 10: Calculating Profit Percentage with Oranges [29:08]
By selling 110 oranges, a shopkeeper claims a profit equal to the selling price of 22 oranges. The instructor explains how to calculate the profit percentage by setting up the equation: Selling Price - Cost Price = Profit. The profit percentage is 25%.
Question 11: Calculating Profit Percentage with Bananas [31:11]
By selling a dozen bananas, Ayan gets a profit equal to the selling price of four bananas. The instructor explains how to calculate the profit percentage by setting up the equation: Selling Price - Cost Price = Profit. The profit percentage is 50%.
Question 12: Calculating Profit Percentage with Lemons [33:36]
A fruit seller buys two lemons for ₹1 and sells five lemons for ₹1. The instructor explains how to calculate the profit percentage by cross-multiplying and finding the difference. The profit percentage is 20%.
Question 13: Calculating Profit/Loss Percentage with Multiple Purchases [36:19]
A shopkeeper buys two articles for ₹1 and then buys three articles for ₹1. He sells three articles for ₹2. The instructor explains how to calculate the overall profit or loss percentage by equating the number of articles and cross-multiplying. The profit percentage is 60%.
Question 14: Maximum Possible Profit [39:54]
Books priced between ₹200 and ₹350 are bought and sold for between ₹300 and ₹450. If eight books are sold, what is the maximum possible profit? The instructor explains that maximum profit is achieved by buying at the lowest price and selling at the highest price. The maximum profit is ₹2000.
Question 15: Transportation Cost Calculation [43:40]
A grocer buys 10 kg of rice and spends some amount. He sells it for ₹1400, making a profit of 30%. How much does he spend on transportation? The instructor explains how to calculate the transportation cost by finding the cost price and subtracting the initial purchase price. The transportation cost is approximately ₹377.
Question 16: Calculating Cost Price with Profit and Loss [47:55]
An item is sold at a profit of 6% instead of a loss of 6%. The seller gets ₹6.72 more. What is the cost price? The instructor explains how to calculate the cost price by finding the difference between the selling prices and equating it to the given amount. The cost price is ₹56.
Question 17: Calculating Cost Price with Profit Difference [49:59]
The difference between the cost price and selling price is ₹1800. The profit is 20%. What is the cost price? The instructor explains how to calculate the cost price by setting up the equation and finding the value of 100%. The cost price is ₹9000.
Question 18: Calculating Profit Percentage with Selling Price Change [52:14]
A watch is sold for ₹2000, resulting in a 20% loss. If it is sold for ₹3000, what is the profit percentage? The instructor explains how to calculate the profit percentage by finding the ratio of the selling prices and equating one to 80%. The profit percentage is 20%.
Question 19: Calculating Selling Price with Profit and Loss [55:31]
A carpet is sold for ₹360, resulting in a 10% loss. At what price should it be sold to make a profit of 20%? The instructor explains how to calculate the selling price by finding the ratio of the selling prices and equating one to 360. The selling price is ₹480.
Question 20: Calculating Overall Loss Percentage [57:22]
Out of 100 items, 25 are sold at a profit of 25% and the remaining 75 are sold at a loss of 25%. What is the overall loss percentage? The instructor explains how to calculate the overall loss percentage by finding the ratio of the number of items and multiplying by the profit and loss percentages. The overall loss percentage is 12.5%.
Question 21: Calculating Number of Items Purchased [1:01:14]
A person buys 30 items and sells them for ₹100, making a profit of ₹20. How many items would have been purchased for ₹100? The instructor explains two methods to solve this question: basic and Mentos way. The number of items purchased for ₹100 is 36.
Question 22: Calculating Number of Articles to be Sold [1:06:11]
Sujatha sells 25 articles for ₹1250, incurring a loss of 10%. How many articles should be sold for ₹2600 to make a profit of 17%? The instructor explains how to use the proportion method to solve this question. The number of articles to be sold is 40.
Question 23: Calculating Total Profit Percentage [1:08:26]
Out of five items, the cost price of each is equal. The first one is sold at a profit of 10%, the second at 5%, the third at 15%, the fourth at a loss of 20%, and the fifth at a loss of 10%. What is the total profit percentage? The instructor explains how to calculate the total profit percentage by adding all the profits and losses and dividing by the number of items. The total profit percentage is 4%.
Question 24: Calculating Total Cost Price [1:11:52]
A shopkeeper sells 2/3rd of an item at a profit of 30%, 1/4th at a profit of 16%, and the remaining part at a profit of 12%. If the entire transaction is ₹750, what is the cost price of all the items? The instructor explains how to calculate the total cost price by assuming the total amount of goods and dividing them into shares. The total cost price is ₹3000.
Question 25: Calculating Cost Price [1:16:06]
An article is bought and sold at a loss of 15%. If it is sold for ₹50 more, there would be a profit of 10%. What is the cost price? The instructor explains how to calculate the cost price by finding the difference between the selling prices and equating it to the given amount. The cost price is ₹200.
Question 26: Calculating Purchase Price and Selling Price [1:17:35]
A shopkeeper sells his goods at a loss of 10%. If he buys it for ₹20 less and sells it for ₹55 more, he would make a profit of 40%. What is the purchase price and previous selling price of the item? The instructor explains how to calculate the purchase price and selling price by setting up the equations and using the given conditions. The purchase price is ₹250 and the selling price is ₹225.
Question 27: Calculating Selling Price to Make a Profit [1:22:43]
A chair is sold at a loss of 25%. If it is sold for ₹900 more, there would be a profit of 5%. What should be the selling price to make a profit of 40%? The instructor explains how to calculate the selling price by finding the difference between the selling prices and equating it to the given amount. The selling price is ₹4200.
Question 28: Calculating Consumption Reduction Percentage [1:24:38]
The price of an item increases by 35%. By how much should the consumption of the commodity be reduced so that the expenses remain the same? The instructor explains that if the cost is the same, the price and consumption are inversely proportional. The consumption should be reduced by 25.93%.
Question 29: Calculating Wheat Quantity Before Shortage [1:26:52]
The price of wheat increases by 10%. For ₹500, a person buys 500 grams less wheat. How much wheat was there in one rupee before that shortage? The instructor explains that if the cost is the same, the price and consumption are inversely proportional. The wheat quantity before the shortage was 450 grams.
Question 30: Calculating Profit or Loss Percentage [1:28:43]
A furniture seller sells two tables for ₹1500 per table. There is a profit of 20% on the first and a loss of 20% on the second. What is the profit or loss percentage in the entire trade? The instructor explains that if the selling prices are equal, there is always a loss. The loss percentage is 4%.
Question 31: Calculating Purchase Price [1:31:26]
A person buys two buffaloes for ₹11520. One is sold at a loss of 15% and the other at a profit of 19%. The selling price of both is equal. What is the purchase price of the first buffalo? The instructor explains how to calculate the purchase price by finding the ratio of the cost prices. The purchase price of the first buffalo is ₹6720.
Question 32: Calculating Cost of Horse [1:34:12]
A man buys a horse and a cart for ₹80,000. He sells the horse at a profit of 10% and the cart at a loss of 5%. He makes a profit of 1% on the whole transaction. What is the cost of the horse? The instructor explains how to use the alligation method to solve this question. The cost of the horse is ₹32,000.
Question 33: Calculating Total Profit [1:37:43]
A dishonest shopkeeper sells his goods at cost price but uses 900 grams instead of 1 kilogram. What is his total profit? The instructor explains that the weight of honesty is on the right hand and the dishonest weight is on the left hand. The profit percentage is 11.11%.
Question 34: Calculating Actual Profit Percentage [1:41:00]
A shopkeeper sells his item at a profit of 20% but uses 800 grams of weight instead of 1 kilogram. What is the actual profit percentage? The instructor explains how to use the ratio method to solve this question. The actual profit percentage is 50%.
Question 35: Calculating Actual Profit Percentage [1:42:29]
A shopkeeper sells his article at a profit of 20% but weighs 20% less. What is the actual profit percentage? The instructor explains how to calculate the actual profit percentage by considering the weight loss. The actual profit percentage is 50%.
Question 36: Calculating Overall Profit Percentage [1:45:16]
Using wrong weights, a dishonest shopkeeper makes a profit of 10% while buying and 10% while selling. What is the overall profit percentage? The instructor explains that if the profit is given, the formula a + b + a * b = 100 can be used. The overall profit percentage is 21%.
Question 37: Calculating Weight Used [1:48:54]
A dishonest dealer claims to sell his goods at cost price but uses wrong weights. If he makes a profit of 15%, how much does he weigh in place of 1 kilogram? The instructor explains how to calculate the weight used by setting up the equation and using the given conditions. The weight used is approximately 869.6 grams.
Question 38: Calculating Profit Percentage [1:51:37]
An article can be sold for ₹5600. The profit made is equal to the loss incurred on selling it for ₹2400. What is the profit percentage? The instructor explains that if the profit is equal to the loss, the cost price is the average of the two selling prices. The profit percentage is 40%.
Question 39: Calculating Purchase Price [1:53:49]
The loss incurred on selling an item for ₹540 is 5/6 of the profit made on selling it for ₹650. What is the purchase price? The instructor explains how to calculate the purchase price by making a ratio of loss and profit. The purchase price is ₹590.
Question 40: Calculating Cost Price [1:56:43]
Selling an item for ₹940 results in a loss. Selling it for ₹1060 results in a profit that is 30% more than the loss. What is the cost price? The instructor explains how to calculate the cost price by making a ratio of loss and profit. The cost price is ₹1200.
Question 41: Calculating Profit Percentage [1:58:43]
Manoj completes a purchase and saves 9/10 of the selling price. An article is purchased at a price and the actual cost is 8% off its original selling price. What is his profit percentage? The instructor explains how to calculate the profit percentage by using the given conditions. The profit percentage is 20%.
Question 42: Calculating Profit Percentage [2:00:20]
If an article is sold at 1/2 of its original selling price, there is a loss of 25%. What is the profit or loss percentage if sold at the original selling price? The instructor explains how to calculate the profit percentage by setting up the equations and using the given conditions. The profit percentage is 50%.
Question 43: Calculating Profit Percentage [2:02:29]
If the selling price is tripled, the profit will be five times. What is the profit percentage? The instructor explains how to calculate the profit percentage by using the given conditions. The profit percentage is 100%.