Question

If Jill answers 50 questions in 20 minutes, how many questions can she answer in 36 minutes

Answer 1

Set up a proportion of questions over time:

50 / 20 = X / 36

Solve for X by cross multiplying:

50*36 = 2*x

1800 = 20x

Divide both sides by 20:

x = 1800 / 20

x = 90

She can answer 90 questions.