a student takes an exam. the ratio of her right answers to her wrong answers is 16 to 5. which of the following could describe this situation?

Question

1. she answered 15 wrong and 48 right.
2. she answered 48 wrong and 15 right.
3. she answers 32 wrong and 23 right.
4. she answered 23 wrong and 32 right.

Answer 1

Wrong to right is 5/16 = 0.3125

Looking at the answers provided:

15/48 = 0.3125 Option 1 is correct, the ratios match

48/15 = 3.2

32/23 = 1.3913

23/32 = 0.7188

Answer 2

Divide 16 by 5 to get the number right for every number wrong. Divide the number right by the number wrong for each scenario to find which one matches the number obtained by dividing 16 by 5. Hint, you can eliminate #2, and #3 as the number wrong exceeds the number right.