A bakery uses sugar and flour in the ratio of 3:5 to make a batch of cookies. If 12 cups of sugar are used, how many cups of flour are needed?

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Comments

PragyaJul 14

wait why isnt it 18? i did 12/3 times... hmm let me recheck

TanishaJul 16

you have to multiply by 5 not 3, sugar is the smaller part of the ratio

SeharJul 19

ohh got it, thanks!

IsaiahJul 23

3:5 so 12 sugar means each part is 4, flour is 5 parts. pretty easy

What this question tests

Your ability to convert between fractions, ratios, and decimals and to reason proportionally.

Cross-multiplying incorrectly or mixing up the ratio parts — a part:part ratio is not a fraction of the whole.