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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
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shikha0611 wrote:
sandy could you define this approach? how can we be sure that substitution method is to be applied for this question and not solving it through algebraic method?


Algebraic method takes time. And time is something you will not have on the GRE. So substitution is the best option in this case.
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
I could not understand your post sandy.Please explain.
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
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Snehg wrote:
I could not understand your post sandy.Please explain.


Put value 6 and 12 for \(a\) and \(b\); and 8 and 16 for \(x\) and \(y\). See which options hold.

Then put value 30 and 36 for \(a\) and \(b\); and 40 and 48 for \(x\) and \(y\). To validate your answer.
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
sandy wrote:
Snehg wrote:
I could not understand your post sandy.Please explain.


Put value 6 and 12 for \(a\) and \(b\); and 8 and 16 for \(x\) and \(y\). See which options hold.

Then put value 30 and 36 for \(a\) and \(b\); and 40 and 48 for \(x\) and \(y\). To validate your answer.


i think you are wrong, answer is B, I plug number you provide B is answer
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
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Peter wrote:
i think you are wrong, answer is B, I plug number you provide B is answer


You are correct! Answer is B and the official explanation is super wrong!

Fixed it! Thanks
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
sandy wrote:
Peter wrote:
i think you are wrong, answer is B, I plug number you provide B is answer


You are correct! Answer is B and the official explanation is super wrong!

Fixed it! Thanks


Yeah i got B too :)
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
What is the final correct ans ? B or D?
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
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Aroma wrote:
What is the final correct ans ? B or D?



It is B
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
Will it be correct if we just do this way?

The average of a and b = (a+b)/2

The average of x and y = (x+y)/2

The ratio of the first to the second will be (a+b)/(x+y).
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Re: Integers a and b are consecutive multiples of 6. Integers x [#permalink]
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