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# The number of meters in AB is equal to the square root of

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Senior Manager
Joined: 21 Oct 2013
Posts: 444
The number of meters in AB is equal to the square root of [#permalink]

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30 Jun 2014, 08:52
1
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Difficulty:

45% (medium)

Question Stats:

56% (01:20) correct 44% (00:54) wrong based on 422 sessions

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The number of meters in AB is equal to the square root of the number of centimeters in AB. What is the length of AB (1 meter=100 centimeters)?

A) 100 meters
B) 10 meters
C) 100 centimeters
D) 10 centimeter
E) 1 centimeter

OE
[Reveal] Spoiler:
100 = √(100×100)
[Reveal] Spoiler: OA
Math Expert
Joined: 02 Sep 2009
Posts: 43896
Re: The number of meters in AB is equal to the square root of [#permalink]

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30 Jun 2014, 09:00
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goodyear2013 wrote:
The number of meters in AB is equal to the square root of the number of centimeters in AB. What is the length of AB (1 meter=100 centimeters)?

A) 100 meters
B) 10 meters
C) 100 centimeters
D) 10 centimeter
E) 1 centimeter

OE
[Reveal] Spoiler:
100 = √(100×100)

I'd plug in the options for this question.

Check option A: if the number of meters in AB is 100, then the number of centimeters is 100*100. The square root of 100*100 is 100: 100 = 100.

_________________
Math Expert
Joined: 02 Sep 2009
Posts: 43896
The number of meters in AB is equal to the square root of [#permalink]

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30 Jun 2014, 09:01
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Bunuel wrote:
goodyear2013 wrote:
The number of meters in AB is equal to the square root of the number of centimeters in AB. What is the length of AB (1 meter=100 centimeters)?

A) 100 meters
B) 10 meters
C) 100 centimeters
D) 10 centimeter
E) 1 centimeter

OE
[Reveal] Spoiler:
100 = √(100×100)

I'd plug in the options for this question.

Check option A: if the number of meters in AB is 100, then the number of centimeters is 100*100. The square root of 100*100 is 100: 100 = 100.

Check other Conversion problems to practice in Special Questions Directory.

Hope it helps.
_________________
Manager
Joined: 03 May 2014
Posts: 166
Location: India
WE: Sales (Mutual Funds and Brokerage)
Re: The number of meters in AB is equal to the square root of [#permalink]

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22 Jul 2017, 21:32
10m=1000cm (1m=100cm)
10m=\sqrt{1000} is not=to 10 hence wrong.
and
100m=100*100cm=\sqrt{10000}=100cm.

GMAT questions appear easy when solution is presented but many test takers make mistake during the exam due to time limitation, careless mistakes or not understanding the question properly and hence many seemingly easy questions appear to be at an higher level.
Senior Manager
Status: love the club...
Joined: 24 Mar 2015
Posts: 263
Re: The number of meters in AB is equal to the square root of [#permalink]

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01 Oct 2017, 09:04
1
KUDOS
goodyear2013 wrote:
The number of meters in AB is equal to the square root of the number of centimeters in AB. What is the length of AB (1 meter=100 centimeters)?

A) 100 meters
B) 10 meters
C) 100 centimeters
D) 10 centimeter
E) 1 centimeter

OE
[Reveal] Spoiler:
100 = √(100×100)

hi

I think it makes sense...

m = √cm

1m = 100cm

100m = 10000cm

100m = √100cm

cheers through the kudos button if this helps
Re: The number of meters in AB is equal to the square root of   [#permalink] 01 Oct 2017, 09:04
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