- A5 : 12
- B5 : 7
- C20 : 28
- D7 : 12
Step-by-Step Solution
Total students = 20 + 28 = 48. Boys : total = 20 : 48. HCF is 4: 20÷4 : 48÷4 = 5 : 12.
Answer: A) 5 : 12
There are 20 boys and 28 girls in a class. Find the ratio of boys to total students in simplest form.
Class 6Ratio and ProportionRatio and Proportion
Key idea: What a ratio means
The ratio 2 : 3 says: for every 2 of one thing, there are 3 of another. In a fruit basket of 2 apples and 3 oranges, the ratio of apples to oranges is 2 : 3. **Order matters** — the ratio of oranges to apples in the same basket is 3 : 2. The two quantities must be in the same unit (you can't ratio apples to kilograms unless you convert).
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