SOLUTION: When Ben set off his journey from Grand city to Central City at an average speed of 67 km/h Jerry left Central City for Grand City at the same time. Jerry traveled along the same r
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Question 1115516: When Ben set off his journey from Grand city to Central City at an average speed of 67 km/h Jerry left Central City for Grand City at the same time. Jerry traveled along the same road as Ben at a speed which is 20 km/h faster than Ben. If the two cities were 770 km apart how far away from Central City was Ben when he passed Jerry along the way. Answer by ikleyn(52810) (Show Source):
Let x = "how far away from Central City was Ben when he passed Jerry along the way".
Then you have this "time equation"
= , or
= .
Solve it for x and get the answer.