Mai finished her chemistry assignment in 1/2 hours. Then She completed her history assignment in 1/4 hours. How much more time d id Mai spend on her chemistry assignment ?
2 answers:
Since 1/2 an hour is 30 minutes and 1/4 is 15 minutes than the answer has to be 15 minutes 15+15=30
SHE SPENT 15 MINUTES MORE. 1 hour is 60 minutes. 1/2 hour is 30 minutes and 1/4 hour is 15 minutes. 30-15=15
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