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How long will x men take to mow y sq. metres of corn, if each man mows z sq. metres a day?​

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It takes two hours for a person X to mow the lawn. Y can mow the same lawn in four hours. How long (in minutes) will it take X and Y, if they work together to mow the lawn?

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4 Answers

Asrar

, lives in Vadodara, Gujarat, India

Answered Feb 7

80 minutes

Suppose the work is of 4 units

X does 2 units in 1 hour, y does 1 unit in one hour

Total work by both together is 3 units in 1hiur, 1 unit is remaining, which is completed in another 20 minutes.

Total tim = 80 minutes