Tractors 19713

Two tractors are working on plowing the field. If only the first tractor plowed, it would plow the field in 3 hours. The second tractor would plow the field by itself in 6 hours. How long will it take to plow if they work together, but the other starts work 2 hours later?

Correct answer:

t =  2.6667 h

Step-by-step explanation:


t/3+(t-2)/6=1

3t = 8


t = 8/3 = 2.66666667

t = 8/3 ≈ 2.666667

Our simple equation calculator calculates it.



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