Tractors

Fields go plow two tractors with various performances. The first tractor plows the whole field in 11 hours. The second tractor plows the whole field 19 hours longer.

How long does it take to plow the whole field with two tractors?

Correct answer:

t =  8.0488 h

Step-by-step explanation:


t·(1/11 + 1/30) = 1

41t = 330


t = 330/41 = 8.04878049

t = 330/41 ≈ 8.04878

Our simple equation calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Looking for calculator of harmonic mean?
Looking for a statistical calculator?
Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.
Check out our ratio calculator.

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: