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Seven workers from the first group have to pan out 100 tons

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Joined: 03 Feb 2003
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Seven workers from the first group have to pan out 100 tons [#permalink]

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28 Jun 2003, 23:35
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Seven workers from the first group have to pan out 100 tons of auriferous ore. The second group consists of four workers, two apprentices, and one master who work 1/3 and 1┬╜ as fast as does a worker accordingly. The second group has to pan out the same pile of ore. Find a ratio of the time that the first group needs to have the work done to the time that the second group needs.
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Joined: 24 Jun 2003
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29 Jun 2003, 01:37
The ratio of the time taken by the first group to that by second group is 0.88
PS: WORK-2   [#permalink] 29 Jun 2003, 01:37
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