In a group of 35 students, 3/7 of them are boys. What is the ratio of boys to girls?
Show Worked Solution
Worked Solution
Step 1: Find the number of boys.
Boys = 3/7 × 35 = 15 boys
Step 2: Find the number of girls.
Girls = 35 − 15 = 20 girls
Step 3: Write and simplify boys : girls.
Boys : Girls = 15 : 20
GCF(15, 20) = 5
15 ÷ 5 = 3, 20 ÷ 5 = 4
Answer: 3 : 4
Correct answer: 3:4
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