Bunuel wrote:

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 such machines produce in 5 minutes?

(A) 512

(B) 2,200

(C) 2,750

(D) 11,000

(E) 44,000

Another approach is to take the given information and

work towards the answer in stepsGIVEN:

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 greenlighttestprep.com

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