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Operating at the same constant rate, 4 identical machines can produce a total of 220 candles per minute...

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by BTGmoderatorLU » Fri Mar 26, 2021 4:48 pm

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Answers

A

B

C

D

E

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Difficulty—

Source: Magoosh

Operating at the same constant rate, 4 identical machines can produce a total of 220 candles per minute. At this rate, how many candles could 10 machines produce in 5 minutes?

A. 512
B. 2,200
C. 2,750
D. 11,000
E. 44,000

The OA is C
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Re: Operating at the same constant rate, 4 identical machines can produce a total of 220 candles per minute...

by Brent@GMATPrepNow » Sun Mar 28, 2021 11:34 am
BTGmoderatorLU wrote: ↑
Fri Mar 26, 2021 4:48 pm
 Source: Magoosh

Operating at the same constant rate, 4 identical machines can produce a total of 220 candles per minute. At this rate, how many candles could 10 machines produce in 5 minutes?

A. 512
B. 2,200
C. 2,750
D. 11,000
E. 44,000

The OA is C
One approach is to take the given information and work towards the answer in steps

GIVEN: 4 machines produce 220 candles per ONE minute
So, 4 machines produce 1100 candles per FIVE minutes (a 5 times increase in time means a 5 times increase in output)
10 machines produce 2750 candles per FIVE minutes (a 2.5 times increase in machines means a 2.5 times increase in output)

Answer: C

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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