Answer
6.25 hours
Work Step by Step
Time
= $\frac{distance}{speed}$
=$\frac{25 000}{4000}$
= 6.25 hours
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.