20men can dig a trench in 15hours, how many men can dig the same trench in 10 hours if they work at the same rate?
2 answers:
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Check the picture below.
as you can see in the picture, the "near arc" is x°, and the "far arc", is the leftover from subtracting the arc of 120° and x°, therefore then
as you can see in the picture, the "near arc" is x°, and the "far arc", is the leftover from subtracting the arc of 120° and x°, therefore then
