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Amiel enrolled in a weight loss program. He lost 1/2 pound every week

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Math Expert
Joined: 02 Sep 2009
Posts: 58414
Amiel enrolled in a weight loss program. He lost 1/2 pound every week  [#permalink]

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01 Apr 2018, 11:04
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Difficulty:

15% (low)

Question Stats:

84% (01:29) correct 16% (01:52) wrong based on 45 sessions

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Amiel enrolled in a weight loss program. He lost 1/2 pound every week for 30 weeks. What percent of his original weight of 240 pounds did Amiel lose during this period?

(A) 0.0625%
(B) 0.625%
(C) 6.25%
(D) 0.16%
(E) 16%

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Re: Amiel enrolled in a weight loss program. He lost 1/2 pound every week  [#permalink]

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01 Apr 2018, 12:54
Bunuel wrote:
Amiel enrolled in a weight loss program. He lost 1/2 pound every week for 30 weeks. What percent of his original weight of 240 pounds did Amiel lose during this period?

(A) 0.0625%
(B) 0.625%
(C) 6.25%
(D) 0.16%
(E) 16%

If Amiel lost 1/2 pound every week for 30 weeks, he would have lost 15 pounds in all.

If his original weight was 240 pounds, 15 pounds will be $$\frac{15}{240}*100 = 6.25$$%

Therefore, Amiel lost 6.25%(Option C) of his original weight during this period

P.S Since the numbers are far apart, we need to find an approximate answer.
24 is 10% and 12 is 5%. 15 must be within this range. Only Option C(6.25) falls in that range!
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Re: Amiel enrolled in a weight loss program. He lost 1/2 pound every week   [#permalink] 01 Apr 2018, 12:54
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