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Two buses leave a corner at the same time. One bus goes uptown at a constant rate of 25 mph, the other downtown at a rate of 15 mph. How long will it take the buses to be 30 miles apart?


A. 20 minutes
B. 30 minutes
C. 45 minutes
D. 1 hour and 15 minutes

Respuesta :

The rate of separation = 25 + 15 = 40 mph


speed = distance / time

40 = 30 / t


t = 30/40 hour = 45 minutes


Its C.

abbeylavaslilly

Answer:

45 minutes

Step-by-step explanation:

the answer is c

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