It is currently 20 Nov 2017, 08:39

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Was Jake's average running speed for the first hour of his

Author Message
Director
Joined: 14 Jan 2007
Posts: 775

Kudos [?]: 179 [0], given: 0

Was Jake's average running speed for the first hour of his [#permalink]

### Show Tags

19 May 2007, 12:26
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Was Jake's average running speed for the first hour of his 26-mile marathon 11 miles per hour?
(1) He ran the entire 26 miles in 2.5 hours
(2) He ran the last 15 miles in 1.5 hours

OA later.

Kudos [?]: 179 [0], given: 0

VP
Joined: 08 Jun 2005
Posts: 1143

Kudos [?]: 254 [0], given: 0

### Show Tags

19 May 2007, 12:46
I can't see how you can solve this problem even with both statements becuase we are left with a void of half an hour that we know nothing about (2.5-1.5-0.5 = 0.5)

Kudos [?]: 254 [0], given: 0

Director
Joined: 26 Feb 2006
Posts: 900

Kudos [?]: 161 [0], given: 0

### Show Tags

19 May 2007, 13:08
vshaunak@gmail.com wrote:
Himalayan wrote:
vshaunak@gmail.com wrote:
Was Jake's average running speed for the first hour of his 26-mile marathon 11 miles per hour?

(1) He ran the entire 26 miles in 2.5 hours
(2) He ran the last 15 miles in 1.5 hours

OA later.

C

Will you explain pls?

i think i am missing something here but here is why I answered C:

total distance = 26
total time = 2.5 hours

last 15 miles took 1.5 hours, remaining (26-15) 11 miles must have taken (2.5-1.5) = 1 hour.

I am little confused. let me know if any.

Kudos [?]: 161 [0], given: 0

VP
Joined: 08 Jun 2005
Posts: 1143

Kudos [?]: 254 [0], given: 0

### Show Tags

19 May 2007, 13:14
I'm guessing the OA is (C) ?

Kudos [?]: 254 [0], given: 0

Manager
Joined: 14 Mar 2007
Posts: 95

Kudos [?]: 16 [0], given: 0

### Show Tags

19 May 2007, 20:45
C

From S1 we get:
total distance = 26
total time = 2.5 hours
(insuff)

From S2 we get:
distance = last 15 miles
time = 1.5 hours
(insuff)

combining S1 and S2:
First part of the race 26-15= 11 miles
Time taken 2.5 - 1.5 = 1 hour
So Speed = 11m/hr

They ask for the average. So C it is

Kudos [?]: 16 [0], given: 0

Director
Joined: 09 Aug 2006
Posts: 521

Kudos [?]: 111 [0], given: 0

### Show Tags

19 May 2007, 20:56
one more C.

Same explanation given by Himalayan.

Kudos [?]: 111 [0], given: 0

Director
Joined: 14 Jan 2007
Posts: 775

Kudos [?]: 179 [0], given: 0

### Show Tags

20 May 2007, 03:29
Thanks guys OA is 'C'.

Kudos [?]: 179 [0], given: 0

20 May 2007, 03:29
Display posts from previous: Sort by