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To fill a larger concert hall, a madrigal singing group consisting of

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To fill a larger concert hall, a madrigal singing group consisting of  [#permalink]

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New post 08 Feb 2019, 02:59
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A
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Difficulty:

  65% (hard)

Question Stats:

25% (02:03) correct 75% (01:10) wrong based on 8 sessions

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To fill a larger concert hall, a madrigal singing group consisting of sopranos, altos, and basses, in a 5:7:3 ratio, needs 40 singers. What is the least number of basses the group will need?

A. 8
B. 9
C. 10
D. 11
E. 12
Spoiler: OA

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Re: To fill a larger concert hall, a madrigal singing group consisting of  [#permalink]

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New post 08 Feb 2019, 03:19
Bunuel wrote:
To fill a larger concert hall, a madrigal singing group consisting of sopranos, altos, and basses, in a 5:7:3 ratio, needs 40 singers. What is the least number of basses the group will need?

A. 8
B. 9
C. 10
D. 11
E. 12


sopranos: altos : basses = 5:7:3

Requirement = 40 singers

i.e. Total Number of Basses = 3*40/(5+7+3) = 8

Answer: Option A
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Re: To fill a larger concert hall, a madrigal singing group consisting of  [#permalink]

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New post 08 Feb 2019, 05:26
Bunuel wrote:
To fill a larger concert hall, a madrigal singing group consisting of sopranos, altos, and basses, in a 5:7:3 ratio, needs 40 singers. What is the least number of basses the group will need?

A. 8
B. 9
C. 10
D. 11
E. 12



basses can be determined
3* 40/15 = 8
IMO A
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Re: To fill a larger concert hall, a madrigal singing group consisting of   [#permalink] 08 Feb 2019, 05:26
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