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Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is i its

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Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is i its [#permalink]

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Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is its speed?

A. 5 meters per second
B. 0.5 meters per second
C. 5 centimeters per second
D. 50 meters per second
E. 5 meters per minute
[Reveal] Spoiler: OA

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Re: Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is i its [#permalink]

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New post 16 May 2015, 15:43
Hi reto,

This question is based around "unit conversions" (the math that is required to convert one unit to another). You'll be asked to perform a few unit conversions on Test Day and they're normally pretty standard (dollars to cents, minutes to seconds, etc.). To answer this question, you need to know that 100 centimeters = 1 meter (the GMAT would normally provide this information in the prompt, since some Test Takers do not know the Metric system of measurements).

So we have to convert 60cm in 1.2 seconds into the equivalent in the correct answer. We can do this math "in pieces"

60cm / 1.2 seconds

First, let's multiply by 5 to get rid of the decimal...

300cm / 6 seconds

Next, divide by 6....

50cm / 1 second

Now we can use the answer choices to our advantage (most of them are "per second"; one is "per minute", but is clearly too BIG, so we can ignore it).

50cm = 1/2 a meter so....

.5m / 1 second

Final Answer:
[Reveal] Spoiler:
B


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Re: Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is i its [#permalink]

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New post 18 May 2015, 03:02
reto wrote:
Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is its speed?

A. 5 meters per second
B. 0.5 meters per second
C. 5 centimeters per second
D. 50 meters per second
E. 5 meters per minute


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Re: Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is i its [#permalink]

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New post 22 Jun 2015, 01:43
OK it is R*1.2 = 60 --> R = 60/1.2 --> R=50 centimeters per second.

1 meter = 100 centimeters. So, 50 centimeters is 0.5 meters. So, ANS B

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Re: Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is i its [#permalink]

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Re: Rough Frenzy Spider leaps 60 centimeters in 1.2 seconds. What is i its   [#permalink] 26 Nov 2017, 05:43
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