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# In the football league of 2010, ManU won 40% of their games

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In the football league of 2010, ManU won 40% of their games  [#permalink]

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17 Jun 2018, 11:58
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76% (01:39) correct 24% (02:06) wrong based on 122 sessions

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In the football league of 2010, ManU won 40% of their games. In 2011 they won 60% of their Games. If there were thrice as many games played in the second as in the first, What percentage of the games did ManU win the 2 Years?

A) 115%

B) 60%

C) 57.5%

D) 55%

E) 40%

Don't know the Original source.
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Re: In the football league of 2010, ManU won 40% of their games  [#permalink]

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22 Jun 2018, 01:53
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Lets pick some easy numbers to work with. We know that during first year he won 40% or 40 games (assuming that number of played games is 100). During second year, he has won 60%(number of games played is twice the number played during forst year, e.g. 200) or 120 won games. In total he has won 120+40=160/300 which is 55% (D)
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In the football league of 2010, ManU won 40% of their games  [#permalink]

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17 Jun 2018, 17:11
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Fahim2 wrote:
In the football league of 2010, ManU won 40% of their games. In 2011 they won 60% of their Games. If there were thrice as many games played in the second as in the first, What percentage of the games did ManU win the 2 Years?

A) 115%

B) 60%

C) 57.5%

D) 55%

E) 40%

Don't know the Original source.

The original source was probably an assistant coach at Liverpool.

Anyway:

I. Assign Values:
Pick simple numbers

Let the # of 1st year games = 10
Let the # of 2nd year games = 30 (= "thrice" 10)

# of games won, 1st year:
40% = (.4 * 10) = 4

# of games won, 2nd yr:
60% = (.6 * 30) = 18
Total games won: (18+4) = 22
Total games played: (10+30) = 40

Overall percent won?
$$(\frac{GamesWon}{Total Games}*100)=(\frac{22}{40}*100)=$$

$$.55*100=55$$ %

II. Weighted average

"Weight" the win percents from the ratio of number of games, which is 1 : 3
40% = .40 weighs 1
60% = .60 weighs 3
Total weight= (1 + 3) = 4

(You can use variables for weights but they're not necessary. x and 3x would get canceled out in the division by the total of the ratio parts, 4x)

$$\frac{.40(1) + .60(3)}{4}=\frac{.4+1.8}{4}=\frac{2.2}{4}=.55=$$

55 percent

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Re: In the football league of 2010, ManU won 40% of their games  [#permalink]

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22 Jun 2018, 11:11
1
generis wrote:
Fahim2 wrote:
In the football league of 2010, ManU won 40% of their games. In 2011 they won 60% of their Games. If there were thrice as many games played in the second as in the first, What percentage of the games did ManU win the 2 Years?

A) 115%

B) 60%

C) 57.5%

D) 55%

E) 40%

Don't know the Original source.

The original source was probably an assistant coach at Liverpool.

Anyway:

I. Assign Values

# of 1st year games = 10
# of 2nd year games = 30 ("thrice" 10)

# of games won, 1st year: 40% = (.4 * 10) = 4
# of games won, 2nd yr: 60% = (.6 *30) = 18
Total won: (18+4) = 22
Total games: (10 + 30) = 40

Overall percent won?
$$(\frac{GamesWon}{Total Games}*100)=(\frac{22}{40}*100)=$$

$$.55*100=55$$ %

II. Weighted average

"Weight" the win percents from the ratio of number of games, which is 1 : 3
40% = .40 weighs 1
60% = .60 weighs 3
Total weight= (1 + 3) = 4

(You can use variables for weights but they're not necessary. x and 3x would get canceled out in the division by the total of the ratio parts, 4x)

$$\frac{.40(1) + .60(3)}{4}=\frac{.4+1.8}{4}=\frac{2.2}{4}=.55=$$

55 percent

I always find such statements messy and make errors whenever encounter these sentences : If there were thrice as many games played in the second as in the first

Can you help me how to deal.

Other one is : It takes 7/5 as many hours to produce X as it does to produce Y.

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Re: In the football league of 2010, ManU won 40% of their games  [#permalink]

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15 May 2019, 11:37
why my answe is incorrect? I choosed B.
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Joined: 15 May 2019
Posts: 9
Re: In the football league of 2010, ManU won 40% of their games  [#permalink]

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20 May 2019, 14:49
It took me 5 mins, but correct.
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In the football league of 2010, ManU won 40% of their games  [#permalink]

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20 May 2019, 15:06
nuraliibodulla wrote:
It took me 5 mins, but correct.

nuraliibodulla , welcome to GMAT Club.
A correct answer is good news.

If you like your method, obviously, practice will make your solving much faster. If you don't like your method, look at this thread for other methods...
.. or look at questions listed below, "Similar questions."
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Intern
Joined: 15 May 2019
Posts: 9
Re: In the football league of 2010, ManU won 40% of their games  [#permalink]

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23 May 2019, 16:08
1
generis wrote:
nuraliibodulla wrote:
It took me 5 mins, but correct.

nuraliibodulla , welcome to GMAT Club.
A correct answer is good news.

If you like your method, obviously, practice will make your solving much faster. If you don't like your method, look at this thread for other methods...
.. or look at questions listed below, "Similar questions."

Thank you a ton for your time and effort Generis!
Re: In the football league of 2010, ManU won 40% of their games   [#permalink] 23 May 2019, 16:08
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# In the football league of 2010, ManU won 40% of their games

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