Question

A student takes an exam. The ratio of her right answers to her wrong answers is 10 to 3. Which of the following could describe this situation?

She answered 20 wrong and 23 right.

She answered 70 wrong and 21 right.

She answers 23 wrong and 20 right.

She answered 21 wrong and 70 right.

Answer 1

70 to 21 would be the correct ratio

Answer 2

she answered 21 wrong and 70 right

10 to 3

multiply both sides by 7

70 to 21