- A100 : 3
- B30 : 1
- C35 : 1
- D33 : 1
Step-by-Step Solution
Original students = 30 * 18 = 540. New total = 540 + 60 = 600. Ratio = 600 : 18 = 100 : 3 (divide by 6).
Answer: A) 100 : 3
A school has students and teachers in the ratio 30 : 1. There are 18 teachers.
If 60 new students join (no new teachers), what is the new student : teacher ratio?
Class 8Ratios and ProportionsComparing Quantities
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