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Popular Word Problems >

Two trains leave stations 300 miles apart at the same time and travel toward each other. One train travels at 85 miles per hour while the other travels at 70 miles per hour. How long will it take for the two trains to meet?

Solution

Tw o t r ain s l e a v e s t a t i o n s 300 mi l es a p a r t a t t h e s am e t im e an d t r a v e l t o w a r d e a c h o t h er . O n e t r ain t r a v e l s a t 85 mi l es p er h o u r w hi l e t h e o t h er t r a v e l s a t 70 mi l es p er h o u r . Ho w l o n g w i ll i t t ak e f or t h e tw o t r ain s t o m ee t ?

Solution

time : 1 \frac{29}{31}

Solution steps

Translate the problem into an equation:

85 x + 70 x = 300

Solve for

x, 85 x + 70 x = 300 : x = \frac{60}{31}

Convert improper fractions to mixed numbers

time : 1 \frac{29}{31}

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