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If a, x, y, and z are positive integers and (x)×(y)×(z)=a2, which of t [#permalink]
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29 Apr 2016, 16:10
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If a, x, y, and z are positive integers and (x)×(y)×(z)=a^2, which of the following could be the values of x, y, and z? A. 3, 16, 25 B. 9, 25, 24 C. 2, 36, 32 D. 2, 9, 16 E. 8, 16, 36
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Re: If a, x, y, and z are positive integers and (x)×(y)×(z)=a2, which of t [#permalink]
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29 Apr 2016, 21:17
Bunuel wrote: If a, x, y, and z are positive integers and (x)×(y)×(z)=a^2, which of the following could be the values of x, y, and z?
A. 3, 16, 25 B. 9, 25, 24 C. 2, 36, 32 D. 2, 9, 16 E. 8, 16, 36 This is one of those questions where using the given options is fastest way to get the solution. We need to find a set where 3 numbers can be paired into 2 pairs of some numbers because we need a product which is a square number. C fits the bill. 2*36*32 = 2*6*6*8*4 = 6*6*8*8
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Re: If a, x, y, and z are positive integers and (x)×(y)×(z)=a2, which of t [#permalink]
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30 Apr 2016, 02:49
Bunuel wrote: If a, x, y, and z are positive integers and (x)×(y)×(z)=a^2, which of the following could be the values of x, y, and z?
A. 3, 16, 25 B. 9, 25, 24 C. 2, 36, 32 D. 2, 9, 16 E. 8, 16, 36 c is the answer as it contains every no. 2 times 2 36=6*6 32=4*4*2



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Re: If a, x, y, and z are positive integers and (x)×(y)×(z)=a2, which of t [#permalink]
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21 Aug 2017, 06:31
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Re: If a, x, y, and z are positive integers and (x)×(y)×(z)=a2, which of t
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