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If the ratio of boys to girls in a class is 5: 3, and there are 65 bo

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If the ratio of boys to girls in a class is 5: 3, and there are 65 bo  [#permalink]

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New post 14 Jan 2019, 03:26
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

100% (00:36) correct 0% (00:00) wrong based on 24 sessions

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Re: If the ratio of boys to girls in a class is 5: 3, and there are 65 bo  [#permalink]

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New post 14 Jan 2019, 03:31
Bunuel wrote:
If the ratio of boys to girls in a class is 5:3, and there are 65 boys, how many girls must there be in the class?

A. 13
B. 18
C. 26
D. 36
E. 39


Let Total = T

Given 5/8(T)=65

T = 104

Girls =104- 65 =39

Hence E
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Re: If the ratio of boys to girls in a class is 5: 3, and there are 65 bo  [#permalink]

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New post 14 Jan 2019, 03:36
5x = 65
x = 13

Girls are 3x = 3(13) = 39

OPTION: E
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Re: If the ratio of boys to girls in a class is 5: 3, and there are 65 bo  [#permalink]

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New post 14 Jan 2019, 04:20
Bunuel wrote:
If the ratio of boys to girls in a class is 5:3, and there are 65 boys, how many girls must there be in the class?

A. 13
B. 18
C. 26
D. 36
E. 39



65/x=5/3
solve for x
we get 39
IMO E
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Re: If the ratio of boys to girls in a class is 5: 3, and there are 65 bo   [#permalink] 14 Jan 2019, 04:20
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If the ratio of boys to girls in a class is 5: 3, and there are 65 bo

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