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# A car is travelling in a constant speed to cover a distance

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Intern
Joined: 07 Oct 2011
Posts: 30

Kudos [?]: 6 [1], given: 1

A car is travelling in a constant speed to cover a distance [#permalink]

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28 May 2012, 10:54
1
KUDOS
00:00

Difficulty:

(N/A)

Question Stats:

83% (00:26) correct 17% (00:11) wrong based on 52 sessions

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A car is travelling in a constant speed to cover a distance of 100 miles. What is the time taken to cover the distance?

(1) In the last 10 miles, car was travelling at a speed of 23 miles/hr
(2) In the first 40 miles, car was travelling at a speed of 23 miles/hr

What could be the answer for this DS question?

Kudos [?]: 6 [1], given: 1

Senior Manager
Joined: 28 Jun 2009
Posts: 439

Kudos [?]: 194 [0], given: 46

Location: United States (MA)
Re: A car is travelling in a constant speed to cover a distance [#permalink]

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28 May 2012, 17:53
"car is travelling in a constant speed". So you need car's speed to find 'time taken to cover 100 miles'

Each statement is sufficient.

Kudos [?]: 194 [0], given: 46

Manager
Joined: 02 Jun 2011
Posts: 149

Kudos [?]: 107 [0], given: 11

Re: A car is travelling in a constant speed to cover a distance [#permalink]

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29 May 2012, 06:52
'constant speed is the catch'?
then must be D

Kudos [?]: 107 [0], given: 11

Senior Manager
Joined: 07 Apr 2012
Posts: 444

Kudos [?]: 81 [0], given: 58

Re: A car is travelling in a constant speed to cover a distance [#permalink]

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29 May 2012, 07:03
did you see the catch before looking at the answers or did it stand out
just after trying to use the answers to solve?

Kudos [?]: 81 [0], given: 58

Manager
Joined: 20 Apr 2010
Posts: 243

Kudos [?]: 22 [0], given: 54

WE 1: 4.6 years Exp IT prof
Re: A car is travelling in a constant speed to cover a distance [#permalink]

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29 May 2012, 07:18
_________________

I will give a Fight till the End

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."
- Bernard Edmonds

A person who is afraid of Failure can never succeed -- Amneet Padda

Don't Forget to give the KUDOS

Kudos [?]: 22 [0], given: 54

Manager
Joined: 12 May 2012
Posts: 80

Kudos [?]: 121 [0], given: 14

Location: India
Concentration: General Management, Operations
GMAT 1: 650 Q51 V25
GMAT 2: 730 Q50 V38
GPA: 4
WE: General Management (Transportation)
Re: A car is travelling in a constant speed to cover a distance [#permalink]

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01 Jun 2012, 04:28
karthiksms wrote:
A car is travelling in a constant speed to cover a distance of 100 miles. What is the time taken to cover the distance?

(1) In the last 10 miles, car was travelling at a speed of 23 miles/hr
(2) In the first 40 miles, car was travelling at a speed of 23 miles/hr

What could be the answer for this DS question?

I am getting D

CONSTANT SPEED.

Kudos [?]: 121 [0], given: 14

Senior Manager
Joined: 13 May 2013
Posts: 458

Kudos [?]: 204 [0], given: 134

Re: A car is travelling in a constant speed to cover a distance [#permalink]

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01 Aug 2013, 14:12
A car is traveling in a constant speed to cover a distance of 100 miles. What is the time taken to cover the distance?

Time = Distance/Rate
Rate = Distance/Time

(1) In the last 10 miles, car was travelling at a speed of 23 miles/hr

Rate = Distance/Time
Rate = 10/23
Rate = .43 miles/minute

If the car was traveling at a constant rate then this rate is applicable for the entire trip.

Time = Distance/Rate
Time = 100/0.43
Time = 232 minutes
Time = 3.87 hours
SUFFICIENT

(2) In the first 40 miles, car was travelling at a speed of 23 miles/hr
The car is going at a constant rate of 23 miles/hour. Therefore:
Time = Distance/Rate
Time = 100/23
Time = 4.34 hours
SUFFICIENT

(D)

Kudos [?]: 204 [0], given: 134

Re: A car is travelling in a constant speed to cover a distance   [#permalink] 01 Aug 2013, 14:12
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