Arithmetic
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Q. A mixture contains 40% alcohol and 60% water. If 5 liters of the mixture is taken out and replaced with 5 liters of pure alcohol, what will be the new percentage of alcohol in the mixture?
Q. A mixture contains 60% fruit juice and 40% water. If 5 liters of water is added, what will be the new percentage of fruit juice in the mixture if the total volume becomes 25 liters?
Q. A mixture contains 60% of liquid X and 40% of liquid Y. If 10 liters of liquid Y is added, what will be the new percentage of liquid X in the mixture if the total volume becomes 30 liters?
Q. A mixture contains 60% of liquid X and 40% of liquid Y. If 5 liters of liquid Y is added, what will be the new percentage of liquid X in the mixture if the total volume becomes 25 liters?
Q. A mixture contains 60% of liquid X and 40% of liquid Y. If the total volume of the mixture is 150 liters, how much of liquid Y is there?
Q. A mixture contains 60% of substance X and 40% of substance Y. If the total weight of the mixture is 200 grams, how much of substance Y is there?
Q. A mixture contains 70% of liquid C and 30% of liquid D. If the total volume is 50 liters, how much of liquid C is there?
Q. A mixture contains milk and water in the ratio of 3:2. If the total volume of the mixture is 50 liters, how much milk is there?
Q. A mixture is made by combining 3 parts of liquid A and 5 parts of liquid B. If the total volume of the mixture is 80 liters, how much of liquid A is there?
Q. A mixture of two grades of rice contains 60% grade A and 40% grade B. If 10 kg of grade B rice is added, what will be the new percentage of grade A rice if the total weight becomes 30 kg?
Q. A mixture of two types of nuts contains 70% almonds and 30% cashews. If 5 kg of cashews are added, what is the new percentage of almonds if the total weight of the mixture becomes 25 kg?
Q. A mixture of two types of nuts contains 70% almonds and 30% cashews. If the total weight of the mixture is 20 kg, how much cashew is there?
Q. A mixture of two types of nuts contains 70% almonds and 30% cashews. If the total weight of the mixture is 200 grams, how many grams of cashews are there?
Q. A mixture of two types of nuts contains 70% almonds and 30% cashews. If the total weight of the mixture is 20 kg, how much cashews are there?
Q. A mixture of two types of nuts contains 70% cashews and 30% almonds. If 5 kg of almonds are added, what is the new percentage of cashews if the total weight of the mixture becomes 25 kg?
Q. A person bought 3 pens and 2 notebooks for $15. If each pen costs $2, what is the cost of each notebook?
Q. A person bought a bicycle for $120 and sold it for $150. What was the percentage profit?
Q. A person bought a laptop for $800 and sold it for $960. What is the percentage profit?
Q. A person bought a watch for $150 and sold it for $120. What is the loss percentage?
Q. A person invests $1000 at an interest rate of 5% per annum. How much interest will he earn in 3 years?
Q. A person invests $2000 at a compound interest rate of 5% per annum. What will be the total amount after 3 years? (2000)
Q. A person invests $2000 at a compound interest rate of 8% per annum. How much will he have after 2 years? (2000)
Q. A person invests $2000 at a compound interest rate of 8% per annum. What will be the total amount after 2 years? (2000)
Q. A person invests $2000 at a rate of 6% per annum. How much interest will he earn in 4 years under simple interest? (2023)
Q. A product is bought for $120 and sold for $144. What is the profit percentage?
Q. A product is bought for $200 and sold for $240. What is the profit percentage?
Q. A product is bought for $500 and sold for $450. What is the loss percentage? (2023)
Q. A product is marked at $250 and sold for $200. What is the discount percentage?
Q. A product is marked at $250 and sold for $200. What is the percentage discount offered? (2023)
Q. A product is marked at $600 and sold at a loss of 10%. What is the selling price?
