Subject: OC Wk 2 Problem 4 Sat Oct 24, 2009 7:54 pm
A blue train traveled the first part of its journey at 50 mph along a 100 mi course, while for the second and last part it traveled 60 mph along a 120 mi course. What was its average speed during this journey?
AK_Kadaveru
Posts : 28 Join date : 2009-10-20
Subject: Re: OC Wk 2 Problem 4 Thu Nov 19, 2009 8:30 am
BhandarkarA wrote:
A blue train traveled the first part of its journey at 50 mph along a 100 mi course, while for the second and last part it traveled 60 mph along a 120 mi course. What was its average speed during this journey?
Spoiler:
I got 55 mph because it traveled for 4 hours (2 in the first part and 2 in the second) and it traveled for 220 miles (100+120=220) so 220/4=55 mph
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