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Airline B ‘s average rating for convenience was approximatel
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Carcass
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Airline B ‘s average rating for convenience was approximatel [#permalink] New post  24 Jan 2017, 07:37
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In a survey, 100 travel agents each ranked Airlines A, B, and C in order of preference. Each of the 100 travel agents also rated the three airlines in five categories on a scale of 1 through 10, with 10 being the best rating.


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GRE - powerprep In a survey, 100 travel agents each ranked Airlines A, B, and C in order of preference..jpg
GRE - powerprep In a survey, 100 travel agents each ranked Airlines A, B, and C in order of preference..jpg [ 51.87 KiB | Viewed 26589 times ]


Airline B ‘s average rating for convenience was approximately what percent greater than Airline A ‘s average rating for convenience?

A) 30%

B) 36%

C) 40%

D) 57%

E) 64%
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sandy
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Re: Airline B ‘s average rating for convenience was approximatel [#permalink] New post  28 Jan 2017, 04:59
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Explanation

Find Airline B's rating for convenience (8.0) and Airline A's rating for convenience (5.1).

CategoryABC
Convenience5.18.04.3
Friendliness5.05.55.4
Price5.06.43.5
Promptness6.56.94.1
Reliability7.87.54.9
Total:29.434.322.2


Determine the increase: 8.0 – 5.1 = 2.9
Now we find the percent change and round to the nearest whole number: Percent change = increase ÷ original number × 100 → 2.9 ÷ 5.1 × 100 = 56.86% or 57%.

Hence option D is correct.
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boxing506
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Re: Airline B ‘s average rating for convenience was approximatel [#permalink] New post  01 Apr 2018, 22:44
WHy we determine Airline A as the original number?
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Re: Airline B ‘s average rating for convenience was approximatel [#permalink] New post  01 Apr 2018, 23:03
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Because you cannot subtract 5.1 - 8.0 that is a negative number. You subtract A from B: B - A = 8 - 5.1. And A is 5.1.

Hope this helps
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Eidolons03
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Re: Airline B ‘s average rating for convenience was approximatel [#permalink] New post  02 Apr 2018, 16:04
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Carcass wrote:



Image

Airline B ‘s average rating for convenience was approximately what percent greater than Airline A ‘s average rating for convenience?

A) 30%

B) 36%

C) 40%

D) 57%

E) 64%


Company B's average was 8.0
Company A's average was 5.1

8.0/5.1 = 1.57

1.57 is the fractional form of 157% so 8.0 is 157% of 5.1. 8.0 hence is 57% greater than 5.1

Answer D
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Farina
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Re: Airline B ‘s average rating for convenience was approximatel [#permalink] New post  17 Aug 2020, 19:00
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boxing506 wrote:
WHy we determine Airline A as the original number?


Anything written after "than" would be considered as denominator
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Re: Airline B ‘s average rating for convenience was approximatel [#permalink] New post  21 Aug 2021, 08:11
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