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شائع 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?

الحلّ

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 ?

الحلّ

first trai n^{'} s speed : 82

second trai n^{'} s speed : 93

خطوات الحلّ

Translate the problem into an equation:

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

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

حلّ لـ:

x = 82

speed جد

first trai n^{'} s speed : 82

second trai n^{'} s speed : 93

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