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In six successive games, a baseball team scored 3 runs once, 6 runs tw

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In six successive games, a baseball team scored 3 runs once, 6 runs tw  [#permalink]

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New post 18 Jun 2019, 00:21
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A
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Question Stats:

94% (00:51) correct 6% (00:34) wrong based on 35 sessions

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Re: In six successive games, a baseball team scored 3 runs once, 6 runs tw  [#permalink]

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New post 18 Jun 2019, 00:50
Bunuel wrote:
In six successive games, a baseball team scored 3 runs once, 6 runs twice, and 9 runs three times. What was the average (arithmetic mean) number of runs the team scored per game over the six-game period?

A. 8
B. 7
C. 6
D. 5
E. 4


Average = Sum/total number; (3*1+6*2+9*3)/6; taking 3 common gives 3(1+4+9)/6=14/2=7 IMO B
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Re: In six successive games, a baseball team scored 3 runs once, 6 runs tw  [#permalink]

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New post 18 Jun 2019, 05:23
Bunuel wrote:
In six successive games, a baseball team scored 3 runs once, 6 runs twice, and 9 runs three times. What was the average (arithmetic mean) number of runs the team scored per game over the six-game period?

A. 8
B. 7
C. 6
D. 5
E. 4


total sum ; 42 ; avg of 6 games;7
IMO B
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Re: In six successive games, a baseball team scored 3 runs once, 6 runs tw  [#permalink]

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New post 18 Jun 2019, 06:59
Bunuel wrote:
In six successive games, a baseball team scored 3 runs once, 6 runs twice, and 9 runs three times. What was the average (arithmetic mean) number of runs the team scored per game over the six-game period?

A. 8
B. 7
C. 6
D. 5
E. 4


team scored 3 runs once, 6 runs twice, and 9 runs three times

—> Total runs scored = 3*1 + 6*2 + 9*3 = 42

Average = 42/6 = 7 runs per game

IMO Option B

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Re: In six successive games, a baseball team scored 3 runs once, 6 runs tw  [#permalink]

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New post 22 Jun 2019, 08:10
Bunuel wrote:
In six successive games, a baseball team scored 3 runs once, 6 runs twice, and 9 runs three times. What was the average (arithmetic mean) number of runs the team scored per game over the six-game period?

A. 8
B. 7
C. 6
D. 5
E. 4



The average number of runs is:

(3 x 1 + 6 x 2 + 9 x 3)/6 = (3 + 12 + 27)/6 = 42/6 = 7

Answer: B
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Re: In six successive games, a baseball team scored 3 runs once, 6 runs tw   [#permalink] 22 Jun 2019, 08:10
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