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Three baseball teams, A, B, and C, play in a seasonal league [#permalink]

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07 Nov 2006, 10:04

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Three baseball teams, A, B, and C, play in a seasonal league. The ratio of the number of players on the three teams is 2:5:3, respectively. Is the average number of runs scored per player across all three teams collectively greater than 22?

(1) The average number of runs scored per player for each of the three teams, A, B, and C, is 30, 17, and 25, respectively. (2) The total number of runs scored across all three teams collectively is at least 220.

Three baseball teams, A, B, and C, play in a seasonal league. The ratio of the number of players on the three teams is 2:5:3, respectively. Is the average number of runs scored per player across all three teams collectively greater than 22?

(1) The average number of runs scored per player for each of the three teams, A, B, and C, is 30, 17, and 25, respectively.

(2) The total number of runs scored across all three teams collectively is at least 220.

number of players = 2x,5x,3x total = 10x

is number of runs / total number of players > 22

from one

total number of runs = 60x , 85x, 75x

average = 220x/10x = 22 suff

from two

assume that total number of runs = 220 / 10x = 22/x , x is positive intiger
it depends on x .........not suff

My Pick is A
1. we know ratio for number of players in each team and we know average runs scored per team we can total runs scored by each team and then divide by the number of players

But the minimum value x will have will always be >= 1 ,so ofcourse the avg will be less than 22 . No ??

The total number of runs is AT LEAST 220 which means it could very well be 300 too. If x = 1 and total number of runs is 220, the avg is 22. Is x > 1 and total number of runs is 220, avg is less than 22. If x = 1 and total number of runs is 300, avg is greater than 22. Hence statement 2 is insufficient.
_________________

Three baseball teams, A, B, and C, play in a seasonal league. The ratio of the number of players on the three teams is 2:5:3, respectively. Is the average number of runs scored per player across all three teams collectively greater than 22?

Since the ratio of the number of players on the three teams is 2:5:3, respectively, then the # of players on the three teams would be \(2x\), \(5x\), and \(3x\), respectively (for some positive integer multiple x).

The average number of runs scored per player equals to total \(\frac{# \ of \ runs}{# \ of \ players}=\frac{# \ of \ runs}{10x}\). So, we are asked to find whether \(\frac{# \ of \ runs}{10x}>22\), or whether \(# \ of \ runs>220x\)

(1) The average number of runs scored per player for each of the three teams, A, B, and C, is 30, 17, and 25, respectively. The total # of runs for each team would be: \(30*2x=60x\), \(17*5x=85x\) and \(25*3x=75x\), so the total # of runs for all teams would be \(60x+85x+75=220x\). Sufficient.

(2) The total number of runs scored across all three teams collectively is at least 220. If the total # of runs is 220 and \(x=1\), then the answer will be NO but if the total # of runs is 230 and \(x=1\), then the answer will be YES. Not sufficient.

Re: Three baseball teams, A, B, and C, play in a seasonal league [#permalink]

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30 Oct 2013, 09:08

Hello from the GMAT Club BumpBot!

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Re: Three baseball teams, A, B, and C, play in a seasonal [#permalink]

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01 Jun 2014, 20:18

VeritasPrepKarishma wrote:

smartmanav wrote:

But the minimum value x will have will always be >= 1 ,so ofcourse the avg will be less than 22 . No ??

The total number of runs is AT LEAST 220 which means it could very well be 300 too. If x = 1 and total number of runs is 220, the avg is 22. Is x > 1 and total number of runs is 220, avg is less than 22. If x = 1 and total number of runs is 300, avg is greater than 22. Hence statement 2 is insufficient.

Hi

Can we use weighted average for statement 1. Ratio of players is 2:5:3 Weighted average/player = (2/10)*30 + (5/10)*17 + (3/10)*25 = 6 + 8.5 + 7.5 = 22 Hence sufficient. Is my logic right? Please let me know. Thanks.

But the minimum value x will have will always be >= 1 ,so ofcourse the avg will be less than 22 . No ??

The total number of runs is AT LEAST 220 which means it could very well be 300 too. If x = 1 and total number of runs is 220, the avg is 22. Is x > 1 and total number of runs is 220, avg is less than 22. If x = 1 and total number of runs is 300, avg is greater than 22. Hence statement 2 is insufficient.

Hi

Can we use weighted average for statement 1. Ratio of players is 2:5:3 Weighted average/player = (2/10)*30 + (5/10)*17 + (3/10)*25 = 6 + 8.5 + 7.5 = 22 Hence sufficient. Is my logic right? Please let me know. Thanks.

Re: Three baseball teams, A, B, and C, play in a seasonal league [#permalink]

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28 Jun 2015, 01:55

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
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Re: Three baseball teams, A, B, and C, play in a seasonal league [#permalink]

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13 Aug 2016, 23:45

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Three baseball teams, A, B, and C, play in a seasonal league [#permalink]

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14 Aug 2016, 03:38

Bunuel wrote:

Three baseball teams, A, B, and C, play in a seasonal league. The ratio of the number of players on the three teams is 2:5:3, respectively. Is the average number of runs scored per player across all three teams collectively greater than 22?

Since the ratio of the number of players on the three teams is 2:5:3, respectively, then the # of players on the three teams would be \(2x\), \(5x\), and \(3x\), respectively (for some positive integer multiple x).

The average number of runs scored per player equals to total \(\frac{# \ of \ runs}{# \ of \ players}=\frac{# \ of \ runs}{10x}\). So, we are asked to find whether \(\frac{# \ of \ runs}{10x}>22\), or whether \(# \ of \ runs>220x\)

(1) The average number of runs scored per player for each of the three teams, A, B, and C, is 30, 17, and 25, respectively. The total # of runs for each team would be: \(30*2x=60x\), \(17*5x=85x\) and \(25*3x=75x\), so the total # of runs for all teams would be \(60x+85x+75=220x\). Sufficient.

(2) The total number of runs scored across all three teams collectively is at least 220. If the total # of runs is 220 and \(x=1\), then the answer will be NO but if the total # of runs is 230 and \(x=1\), then the answer will be YES. Not sufficient.

Answer: A.

One doubt here, we have to prove whether total runs > 220x, correct.

In statement A, if we take x=1, we are getting 220, which is not > 220.

What I am trying to say is if we have 2,5,and 3 players. In that case total number of runs is 220 not greater than 220.

Three baseball teams, A, B, and C, play in a seasonal league. The ratio of the number of players on the three teams is 2:5:3, respectively. Is the average number of runs scored per player across all three teams collectively greater than 22?

Since the ratio of the number of players on the three teams is 2:5:3, respectively, then the # of players on the three teams would be \(2x\), \(5x\), and \(3x\), respectively (for some positive integer multiple x).

The average number of runs scored per player equals to total \(\frac{# \ of \ runs}{# \ of \ players}=\frac{# \ of \ runs}{10x}\). So, we are asked to find whether \(\frac{# \ of \ runs}{10x}>22\), or whether \(# \ of \ runs>220x\)

(1) The average number of runs scored per player for each of the three teams, A, B, and C, is 30, 17, and 25, respectively. The total # of runs for each team would be: \(30*2x=60x\), \(17*5x=85x\) and \(25*3x=75x\), so the total # of runs for all teams would be \(60x+85x+75=220x\). Sufficient.

(2) The total number of runs scored across all three teams collectively is at least 220. If the total # of runs is 220 and \(x=1\), then the answer will be NO but if the total # of runs is 230 and \(x=1\), then the answer will be YES. Not sufficient.

Answer: A.

One doubt here, we have to prove whether total runs > 220x, correct.

In statement A, if we take x=1, we are getting 220, which is not > 220.

What I am trying to say is if we have 2,5,and 3 players. In that case total number of runs is 220 not greater than 220.

Yes, so we have a definite NO answer to the question whether total runs > 220x, which is sufficient.
_________________

Re: Three baseball teams, A, B, and C, play in a seasonal league [#permalink]

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14 Aug 2016, 08:56

kidderek wrote:

Three baseball teams, A, B, and C, play in a seasonal league. The ratio of the number of players on the three teams is 2:5:3, respectively. Is the average number of runs scored per player across all three teams collectively greater than 22?

(1) The average number of runs scored per player for each of the three teams, A, B, and C, is 30, 17, and 25, respectively. (2) The total number of runs scored across all three teams collectively is at least 220.

Analyzing statement 1 : Let Na , Nb , Nc represent the number of players in teams A,B,C respectively

According to the ratio , Na = 2k , Nb = 5k , Nc = 3k , K is a positive integer From the average given , Number of runs scored by A,B,C will be 60k , 85k , 75k

Average of runs scored per player collectively in all 3 teams = Total # of runs scored collectively / total # of players in A,B,C = (60k+ 85k+75k ) / 10k = 22, which is not greater than 22 Sufficient to answer

Analyzing statement 2 ,

Average = Number of runs scored / 10k

Lets take kmin = 1 and minimum # of runs scored i.e 220

Average = 220/10 = 22 , which is not greater than 22 Lets take total runs scored as 300 , k=1

Average = 300 /10 = 30 , which is greater than 22

So , we do not have sufficient info to arrive at a unique result statement 2 is insufficent

answer : A

gmatclubot

Re: Three baseball teams, A, B, and C, play in a seasonal league
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14 Aug 2016, 08:56

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