Mathematics, 08.04.2021 02:40 logicalness243

If it takes Laine 4 hours to wash the windows, Leslie 5 hours to wash the same windows, and Lance 6 hours to wash the windows, how long would it take them all working together? .8 hours
6 hours
1.6 hours
3.2 hours

Answers: 2

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If it takes Laine 4 hours to wash the windows, Leslie 5 hours to wash the same windows, and Lance 6...