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If Machine A makes a yo-yo every five minutes and machine B takes 10 min to make a yo-yo, how many hours would it take them working together to make 20 yo-yos?
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44 votes
If Machine A makes a yo-yo every five minutes and machine B takes 10 min to make a yo-yo, how many hours would it take them working together to make 20 yo-yos?

User Daurnimator
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2 Answers

21 votes
21 votes
It will be 19 yo-yos
User Mnikley
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2.6k points
19 votes
19 votes

Answer: 130 minutes

Step-by-step explanation: 10 min = 1 yo-yo and 5 min = 1 yo-yo. A- 60 min = 6 yo-yos. B- 70 min = 14 yo-yos. 14+6 = 20 yo-yos, so 70+60 = 130 minutes.

User Lobsang
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