Heinrich Oswald- Practice Questions
- 2024-04-06
Practice Questions - Practicing Percentage of Quantities:
1. Question: If a recipe calls for 2 cups of flour and you need to calculate 25% of that amount, how much flour should you use?
Answer: 0.25 x 2 cups = 0.5 cups
Explanation: To find 25% of 2 cups, you multiply 2 by 0.25, which equals 0.5 cups. This means you should use half a cup of flour in the recipe.
2. Question: A farmer has 80 cows, and 20% of them are calves. How many calves does the farmer have?
Answer: 0.20 x 80 = 16 calves
Explanation: To find 20% of 80 cows, you multiply 80 by 0.20, which equals 16 calves. Therefore, the farmer has 16 calves on the farm.
3. Question: In a classroom of 30 students, 40% are girls. How many girls are in the classroom?
Answer: 0.40 x 30 = 12 girls
Explanation: To calculate 40% of 30 students, you multiply 30 by 0.40, which equals 12 girls. Therefore, there are 12 girls in the classroom.
4. Question: A company sold 500 smartphones, and 15% of them were defective. How many defective smartphones were sold?
Answer: 0.15 x 500 = 75 defective smartphones
Explanation: By multiplying 500 smartphones by 0.15, you find that 75 of them were defective. This helps the company keep track of its product quality.
5. Question: If a store has 300 books, and 60% of them are novels, how many books are novels?
Answer: 0.60 x 300 = 180 novels
Explanation: By calculating 60% of 300 books, you find that there are 180 novels in the store. This information helps the store manage its inventory effectively.
These questions provide practical scenarios where understanding percentages of quantities is crucial. By solving them, you can enhance your skills in applying percentages to real-life situations.
