SOLUTION: One worker make a wall in 5 days,second one in 6 days,3rd one in 7 days.if all three worker make wall together then how much time taken by them?
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Question 711550: One worker make a wall in 5 days,second one in 6 days,3rd one in 7 days.if all three worker make wall together then how much time taken by them? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! One worker make a wall in 5 days,second one in 6 days,3rd one in 7 days.if all three worker make wall together then how much time taken by them?
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Rate Equation:
1/5 + 1/6 + 1/7 = 1/x
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Multiply thru by 210 to get:
42x + 35x + 30x = 210
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107x = 210
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x = 1.96 days (time to do the job together)
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Cheers,
Stan H.
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