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A mason’s helper requires 4 hours to pave a concrete walk than it takes the mason. The two worked together for 3 hours when the mason was called away. The helper completed the job in 2 hour. How long would it take each other to do the job?​

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Answers:

Mason and his helper work at 1/x and 1/x+6 respectively.

(1/x+1//x+4) x3+1/x+4.2=1

3/x + 3/x+4 + 2/x+4 = 1

x=6

So mason take 6 hours .Mason's helper take (6+4) hours. 10 hours

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