The ratio of boys to girls in a class is $3 : 5$. If there are $32$ students total, how many **girls** are there?
A$20$
B$15$
C$25$
D$12$
Answer & Solution
Correct answer: A. $20$
Total parts $= 3 + 5 = 8$. Each part $= 32 / 8 = 4$ students.
Girls $= 5 \cdot 4 = 20$.
Check: boys $= 3 \cdot 4 = 12$; total $= 32$ ✓.
- Trap A is the boy count.
- Trap B and D miscompute.
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