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15 Jan 2019, 03:36
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
(N/A)
Question Stats:
75% (01:49) correct
25%
(01:10)
wrong
based on 4
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Over a four-game stretch, Dennis’s bowling score averaged 240. By what percent would his score have had to have been higher in order for him to average a perfect game (300)?
A.15
B.20
C.25
D.30
E.50
Simple enough question but a very important concept to remember!
A.15
B.20
C.25
D.30
E.50
In this question, calculating either sum is unnecessary, as the percent change
in his average would be the same as the percent change in his total score.
Since the figures are already calculated for you in terms of average, you can
calculate the percent change just given the averages: (300 – 240)/240 = ¼, so
John would have needed to increase his score by 25%.
in his average would be the same as the percent change in his total score.
Since the figures are already calculated for you in terms of average, you can
calculate the percent change just given the averages: (300 – 240)/240 = ¼, so
John would have needed to increase his score by 25%.
Simple enough question but a very important concept to remember!
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UB001
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15 Jan 2019, 03:53
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It’s a 4 Game Stretch, so
Original Score = 4 x 240
Expected Score = 4 x 300
By what PERECNT would his score have had to have been HIGHER in order for him to average a perfect game (300)?
We need to calculate Expected Percentage Increase
Percentage Increase =((Change In Score) / Original Score) x 100 %
Change in Score = 4 x (300-240) = 4 x 60
Percentage Increase = ((4 x 60 ) / (4 x 240)) x 100%
= 25%
ANSWER OPTION C IS CORRECT
Original Score = 4 x 240
Expected Score = 4 x 300
By what PERECNT would his score have had to have been HIGHER in order for him to average a perfect game (300)?
We need to calculate Expected Percentage Increase
Percentage Increase =((Change In Score) / Original Score) x 100 %
Change in Score = 4 x (300-240) = 4 x 60
Percentage Increase = ((4 x 60 ) / (4 x 240)) x 100%
= 25%
ANSWER OPTION C IS CORRECT
15 Jan 2019, 03:56
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Sorry but I think its poorly worded
"By what percent would his score" you mean last 4th score? all the four score or you mean the fifth score?
"By what percent would his score have had to have been higher" than what? his average score or something else?
P.S. make some changes and it's a good question
Cheers
L
"By what percent would his score" you mean last 4th score? all the four score or you mean the fifth score?
"By what percent would his score have had to have been higher" than what? his average score or something else?
P.S. make some changes and it's a good question
Cheers
L
