Maths : Ratio QA
Maths : Ratio 1. Write the ratio of 3 apples to 5 apples. Answer: 3 : 5 Explanation: Ratio compares quantities of the same type. So, apples to apples = 3 : 5. 2. Express the ratio 12 : 18 in its simplest form. Answer: 2 : 3 Explanation: Find the HCF of 12 and 18, which is 6. Divide both terms by 6: 12 ÷ 6 = 2, 18 ÷ 6 = 3 So the simplest form is 2 : 3. 3. The ratio of boys to girls in a class is 4 : 5. If there are 20 boys, how many girls are there? Answer: 25 girls Explanation: 4 parts = 20 boys 1 part = 20 ÷ 4 = 5 Girls = 5 parts = 5 × 5 = 25 4. Divide ₹120 in the ratio 2 : 3. Answer: ₹48 and ₹72 Explanation: Total parts = 2 + 3 = 5 Value of 1 part = 120 ÷ 5 = 24 First share = 2 × 24 = ₹48 Second share = 3 × 24 = ₹72 5. The ratio of red balls to blue balls is 7 : 9. If there are 63 red balls, find the number of blue balls. Answer: 81 blue balls Explanation: 7 parts = 63 1 part = 63 ÷ 7 = 9 Blue balls = 9 parts = 9 × 9 = 81 6. The ratio of length to breadth of a rectangle is 5 : 3. If ...