BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

mathematics...

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Newbie | Next Rank: 10 Posts
Posts: 1
Joined: Wed Aug 17, 2011 12:17 am

mathematics...

by kopisake » Wed Aug 17, 2011 12:22 am
how i can do this?
I----------------------I-----------I
p 240km q 75km r

ali drives from p to q..the time taken for the journey from p to q is 3hours,while from q to r is
1+1/2hours..what the average speed of the whole journey????????help me with urgent situation..heheheh
Top
Source: — Quantitative Reasoning |
Senior | Next Rank: 100 Posts
Posts: 77
Joined: Tue Aug 16, 2011 11:49 pm
Thanked: 3 times

by mukgera » Wed Aug 17, 2011 2:49 am
avg speed = total distance / total time.

total distance = 240 + 75 = 315 Km
total time = 3 + 1.5 = 4.5 hour

So Avg Speed = 315 /4.5 = 70 Km/hr

I hope this would be clear.
Top
Post new topic Post Reply
• Page 1 of 1