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A vineyard contains different types of grapevines. One-fourth of the

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A vineyard contains different types of grapevines. One-fourth of the  [#permalink]

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New post 11 Jan 2018, 21:50
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A
B
C
D
E

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  15% (low)

Question Stats:

84% (01:45) correct 16% (02:25) wrong based on 47 sessions

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A vineyard contains different types of grapevines. One-fourth of the number of white grapevines is one-tenth of the total number of grapevines in the vineyard. One-fifth of the number of red grapevines is one-fifteenth of the total number of vines in the vineyard. If there are 120 white grapevines in the vineyard, how many red grapevines are in the vineyard?

A. 180
B. 135
C. 100
D. 90
E. 85

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Re: A vineyard contains different types of grapevines. One-fourth of the  [#permalink]

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New post 11 Jan 2018, 23:10
Let total no of grapevine = V
White grapevine = W
Red grapevine= R

\(\frac{1}{4}\)W= \(\frac{1}{10}\)V

\(\frac{1}{4}\)*120= \(\frac{V}{10}\)

V=300

\(\frac{1}{5}\)R= \(\frac{1}{15}\)V

\(\frac{R}{5}\)= \(\frac{1}{15}\)*300

R= 5*20= 100

Answer: C.
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Re: A vineyard contains different types of grapevines. One-fourth of the   [#permalink] 11 Jan 2018, 23:10
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A vineyard contains different types of grapevines. One-fourth of the

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