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A machine works at a constant rate and produces a bolts in 1

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GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4749
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 93

Kudos [?]: 1653 [0], given: 396

CAT Tests
A machine works at a constant rate and produces a bolts in 1 [#permalink] New post 14 May 2017, 05:06
Expert's post
00:00

Question Stats:

50% (01:18) correct 50% (01:05) wrong based on 12 sessions
A machine works at a constant rate and produces a bolts in 15 minutes and b bolts in c hours.

Quantity A
Quantity B
b
3ac


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.



Drill 1
Question: 12
Page: 339
[Reveal] Spoiler: OA

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Sandy
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GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4749
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 93

Kudos [?]: 1653 [0], given: 396

CAT Tests
Re: A machine works at a constant rate and produces a bolts in 1 [#permalink] New post 04 Jun 2017, 15:03
Expert's post
Explanation

Plug in values.

If a = 5 and c = 1, then b = 20. In that situation Quantity A is larger; eliminate choices (B) and (C).

Plug In again to see if this is always the case. If a = 100 and c = 2, then b = 800.

Quantity A is still larger. There isn’t anything else you can try that would change the values, so choice A is the best answer.
_________________

Sandy
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Re: A machine works at a constant rate and produces a bolts in 1   [#permalink] 04 Jun 2017, 15:03
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A machine works at a constant rate and produces a bolts in 1

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