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Populaire Word Problems >

Two trains leave towns 700kilometers apart at the same time and travel toward each other. One train travels 11 kmh slower than the other. If they meet in 4hours. What is the rate of each train?

Solution

Tw o t r ain s l e a v e t o w n s 700 ki l o m e t ers 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 11 kmh s l o w er t han t h e o t h er . I f t h ey m ee t in 4 h o u rs . Wha t i s t h e r a t e o f e a c h t r ain ?

Solution

first trai n^{'} s speed : 82

second trai n^{'} s speed : 93

étapes des solutions

Translate the problem into an equation:

x \cdot 4 + (x + 11) \cdot 4 = 700

Solutionner pour

x, x \cdot 4 + (x + 11) \cdot 4 = 700 : x = 82

Trouver speed

first trai n^{'} s speed : 82

second trai n^{'} s speed : 93

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