Mathematics, 25.07.2020 01:01 jazionaemontgomery

Tim and Jim are working on a school project together. If he had to work by himself, it would take Tim 10 hours to complete the school project. If Jim worked alone, it would take him 15 hours.
Working together, how long will it take Tim and Jim to complete the school project together?

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Tim and Jim are working on a school project together. If he had to work by himself, it would take T...

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