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24-10-2019
Mathematics

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

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musiclover10045 musiclover10045

24-10-2019

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.

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