SOLUTION: On his trip to the mountains, Klink drove for 3 hours at an average speed of 50 mph, then for 2 hours at an average speed of 30 mph. What was his average for the entire trip?

Question 429217: On his trip to the mountains, Klink drove for 3 hours at an average speed of 50 mph, then for 2 hours at an average speed of 30 mph. What was his average for the entire trip?
Found 2 solutions by stanbon, ewatrrr:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
On his trip to the mountains, Klink drove for 3 hours at an average speed of 50 mph, then for 2 hours at an average speed of 30 mph. What was his average for the entire trip?
-----
Trip average = (total distance)/(total time)
----
1st leg:
distance = 3*50 = 150 miles in 3 hrs.
---
2nd leg:
distance = 2*30 = 60 miles in 2 hrs
----
Trip average = (150+60)/(3+2) = 210/5 = 42 mph
=====================================================
Cheers,
Stan H.
============

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

Hi
(3*50mph + 2*30mph)/5hr = 42mph
RELATED QUESTIONS
joe drove a rate of 24 mph for 3 hours then he drove at 40mph for another 5 hours. What... (answered by josmiceli)
therese drove for 3 hours at a speed of 40 mph, then for an additional 7 hours at a speed (answered by Finavon)
Mario travels for 3 hours at an average speed of 41 mph, then 4 hours at an average speed (answered by htmentor)
On a trip, Sam drove 50 mph for 3 hours and then drove 40 mph for 2 hours. What is Sam's... (answered by Alan3354)
A man drove the first 75 miles of a trip at an average of 50mph. He then drove the next... (answered by ankor@dixie-net.com)
Chris's average speed for a 6 hour trip was 70 mph. For the first 4 hrs, Chris drove at... (answered by mananth,robertb)
On a recent road trip, I drove at a speed of 90 mph for 2 hours. Then I realized my speed (answered by Alan3354,josgarithmetic)
In traveling from city A to city B, John drove for 1 hour at 50 mph and for 3 hours at 60 (answered by rfer,stanbon)
William drove 5 hours at the average speed of 54 miles an hour. For the first 2 hours, he (answered by mananth)