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Популярное 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?

Решение

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 ?

Решение

first trai n^{'} s speed : 82

second trai n^{'} s speed : 93

Шаги решения

Translate the problem into an equation:

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

Решите для

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

Найдите speed

first trai n^{'} s speed : 82

second trai n^{'} s speed : 93

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