# A ship left a port and sailed east at the rate of 30 miles per hour. One hour later, a second ship left the same port at the rate of 40 miles per hour, also traveling east. In how many hours did the second ship overtake the first ship?

##### 1 Answer

Apr 23, 2018

Four hours from the first ship leaving, or three hours from the second ship leaving.

#### Explanation:

Let

They've met when

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