Welders

Welder do the job for six hours, the second one for 8 hours. How long do the job third welder if all together can do job in 2 hours?

Result

x =  4.8 h

Solution:


x/6+x/8+1=x/2

5x = 24

x = 245 = 4.8

Calculated by our simple equation calculator.







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To solve this example are needed these knowledge from mathematics:

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