Arithmetic
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Q. A and B are mixed in the ratio 1:4. If the total volume of the mixture is 100 liters, how many liters of liquid A are there?
Q. A and B are mixed in the ratio 2:3. If the total volume of the mixture is 50 liters, how much of liquid A is present?
Q. A and B are mixed in the ratio 2:3. If the total volume of the mixture is 50 liters, how much of liquid B is there?
Q. A and B are mixed in the ratio 4:5. If the total volume of the mixture is 90 liters, how much of liquid B is present?
Q. A and B are mixed in the ratio 4:5. If the total volume of the mixture is 90 liters, how many liters of liquid B are there?
Q. A bag contains red and blue balls in the ratio of 3:5. If there are 40 blue balls, how many red balls are there?
Q. A bag contains red and blue balls in the ratio of 5:3. If there are 40 red balls, how many blue balls are there?
Q. A bank offers an interest rate of 5% per annum. If a customer deposits $1,000, how much interest will the customer earn in 3 years? (2023)
Q. A bicycle is sold for $300 after a discount of 25%. What was the marked price?
Q. A book is marked at $40. If a customer buys it at a 15% discount, what is the amount saved?
Q. A book is sold for $150 after a discount of 25%. What was the marked price of the book? (2023)
Q. A book is sold for $45 after a discount of 10%. What is the marked price of the book?
Q. A box contains 5 red balls and 3 blue balls. If one ball is drawn at random, what is the probability that it is blue?
Q. A car travels 60 km in 1 hour and 30 minutes. What is its average speed in km/h?
Q. A car travels a distance in the ratio of 3:2 at two different speeds. If the total distance is 150 km, how much distance does it cover at the first speed?
Q. A car travels at a speed of 60 km/h and a bike travels at 40 km/h. What is the ratio of the speeds of the car to the bike?
Q. A car's value depreciates by 20% each year. If the car's initial value is $25,000, what will be its value after 2 years?
Q. A car's value depreciates by 20% each year. If the car's initial value is $25,000, what will be its value after two years?
Q. A car's value depreciates by 20% each year. If the current value is $20,000, what will be its value after one year?
Q. A certain amount of money is invested at a compound interest rate of 10% per annum. How long will it take for the investment to double?
Q. A certain amount of money is invested at a compound interest rate of 12% per annum. If the amount becomes $5000 after 3 years, what was the principal?
Q. A certain amount of money triples itself in 15 years at compound interest. What is the annual interest rate?
Q. A chemist has a solution that is 25% acid. How much of this solution must be mixed with 10 liters of a solution that is 50% acid to obtain a solution that is 40% acid?
Q. A class has 30 students, and 40% of them are girls. How many boys are there in the class? (2023)
Q. A company has 120 employees, and 25% of them are in the sales department. How many employees are not in the sales department?
Q. A company reported a profit of 20% on its sales. If the sales amount to $50,000, what is the profit earned by the company?
Q. A company reports a profit margin of 20%. If the total revenue is $500,000, what is the profit amount? (2023)
Q. A company reports a profit margin of 25%. If the total revenue is $200,000, what is the profit amount?
Q. A company reports a profit margin of 30%. If the cost price of a product is $200, what is the selling price?
Q. A company reports a profit margin of 30%. If the total revenue is $500,000, what is the profit amount? (2023)
