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Rosemary C.

asked • 08/29/13

If a is travelling at 120 mph and is one lap (3/4 mile) behind, and B is travelling 110 mph, how many laps will it take A to catch up?

math word problem
 

2 Answers By Expert Tutors

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Ralph L. answered • 08/29/13

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Algebra I, II, Visual Basic, Beginning C++ tutor

Hassan H.

Ralph,
 
The faster car is travelling at 160 laps/hr, so in t=3/40 hr, it will have travelled 12 laps, not 9.  I think you just mislabelled the units---you meant to say 9 miles, maybe?
 
Regards,
Hassan H.
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08/29/13

Ralph L.

My mistake. Thank you. Yes, I meant 9 miles.
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08/29/13

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