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If x/y = 2/3 and y/z = 4/7, what is x/z?
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28 Nov 2021, 09:24
28 Nov 2021, 09:24
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Question Stats:
90% (00:40) correct
10% (00:53) wrong based on 10 sessions
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This question is part of the GRE - Skill Builder Project for a Q170
If \(\frac{x}{y} = \frac{2}{3}\) and \(\frac{y}{z} = \frac{4}{7}\), what is \(\frac{x}{z}\)?
Show: ::
8/21
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Re: If x/y = 2/3 and y/z = 4/7, what is x/z?
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28 Nov 2021, 13:47
28 Nov 2021, 13:47
1
Carcass wrote:
This question is part of the GRE - Skill Builder Project for a Q170
If \(\frac{x}{y} = \frac{2}{3}\) and \(\frac{y}{z} = \frac{4}{7}\), what is \(\frac{x}{z}\)?
Show: ::
8/21
Key property: \((\frac{a}{b})(\frac{b}{c}) = \frac{a}{c}\)
Given:
\(\frac{x}{y} = \frac{2}{3}\)
\(\frac{y}{z} = \frac{4}{7}\)
Multiply the two equations to get: \((\frac{x}{y})(\frac{y}{z}) = (\frac{2}{3})(\frac{4}{7})\)
Simplify: \(\frac{x}{z} = \frac{8}{21}\)
Answer: \(\frac{8}{21}\)
gmatclubot
Re: If x/y = 2/3 and y/z = 4/7, what is x/z? [#permalink]
28 Nov 2021, 13:47
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