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

Redeem

a question from gmat.............

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 155
Joined: Wed Sep 22, 2010 3:54 am
Thanked: 6 times

a question from gmat.............

by pzazz12 » Wed Sep 22, 2010 4:28 am
A motorcycle stunts man belonging to a fair, rides over the vertical walls of a circular well at an average speed of 54 kph for 5 minutes. If the radius of the well is 5 meters then the distance traveled is:

1. 2.5 kms
2. 3.5 kms
3. 4.5 kms
4. 5.5 kms
5. None of the above
Top
Source: — Problem Solving |
Junior | Next Rank: 30 Posts
Posts: 17
Joined: Tue Aug 24, 2010 4:51 am
Location: Sydney, Australia
Thanked: 1 times

by kaushiksin » Wed Sep 22, 2010 5:09 am
At an average speed of 54 kph after travelling for 5 min
The stuntman would have travelled: 5/60 x 54 km = 4.5 km

Answer is (3)
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 164
Joined: Sun Jul 18, 2010 5:26 am
Thanked: 49 times
Followed by:4 members
GMAT Score:710

by Maciek » Wed Sep 22, 2010 6:28 am
Hi all!

The task here is to avoid unnecessary calculations.
We don't need information about radius of the well.
We simply need to use formula for speed, which is v = s/t.
s = ?
v = 54 kmph
t = 5min = 5/60 h
s = v*t = 54*5/60 = 4.5 km
Therefore, correct answer is 3.

Hope it helps!
Best,
Maciek
"There is no greater wealth in a nation than that of being made up of learned citizens." Pope John Paul II

if you have any questions, send me a private message!

should you find this post useful, please click on "thanks" button :)
Top
User avatar
Legendary Member
Posts: 1261
Joined: Sun Sep 14, 2008 3:46 am
Thanked: 27 times
GMAT Score:570

by reply2spg » Wed Sep 22, 2010 7:06 am
What do you mean by, question from GMAT. If this is real test question then remove it asap.

Just FYI - Posting real questions is against the policy of GMAC and if you get caught then you might end up with sever penalty
Sudhanshu
(have lot of things to learn from all of you)
Top
Post new topic Post Reply
• Page 1 of 1