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Jason can stack two shelves in 3 hours and Maria can stack
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12 Oct 2017, 20:42
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Question Stats:
88% (01:21) correct
11% (00:58) wrong based on 43 sessions
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timer Statistics
Jason can stack two shelves in 3 hours and Maria can stack three shelves in 2 hours. How long will it take them together, working at a constant rate, to stack thirteen shelves?
A. 5 hours B. 6 hours C. 6.5 hours D. 11 hours E. 12 hours
Re: Jason can stack two shelves in 3 hours and Maria can stack
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13 Oct 2017, 06:23
2
Bunuel wrote:
Jason can stack two shelves in 3 hours and Maria can stack three shelves in 2 hours. How long will it take them together, working at a constant rate, to stack thirteen shelves?
A. 5 hours B. 6 hours C. 6.5 hours D. 11 hours E. 12 hours
Kudos for correct solution.
Jason stack one shelve = 3/2 hours
Maria stack one shelve = 2/3 hours
Working together they stack one shelve = (23∗32)/(23+32)
Re: Jason can stack two shelves in 3 hours and Maria can stack
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27 Mar 2024, 10:42
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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Re: Jason can stack two shelves in 3 hours and Maria can stack [#permalink]