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Catherine is practicing math and science questions to prepare for her upcoming exams. It takes 12 minutes to do a math question and 5 minutes to answer a science question. Among the following options, which one should she choose if she wants to spend less than an hour practicing? 
 

4 math questions and 3 science

2 math questions and 7 science questions

5 math questions and 1 science question

3 math questions and 5 science questions 

 
 Dec 18, 2020

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