Jenny’s mom says she has an hour before it’s bedtime. Jenny spends 3/5 of the hour texting a friend and 3/8 of the remaining time brushing her teeth and putting on her pajamas. She spends the rest of the time reading her book. How long did Jenny read?
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Answer:
15 minutes only to read the book
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Answer:
I see some other answerers have been confused by the wording of this problem. A big part of problems like these is reading comprehension; read the whole thing, and make sure you understand how the parts fit together!
Jo spends 3/5 of an hour texting. 3/5 of 60 minutes is 36 minutes; everyone agrees on that. So we throw away 36 minutes, and have 24 left.
Jo then spends 3/8 of the remaining time brushing her teeth. The remaining time is 24 minutes; 3/8 of that is 9 minutes. (She brushes her teeth very thoroughly, she does.)
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