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0.77777.......

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0.77777....... [#permalink] New post 17 Oct 2017, 15:40
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Question Stats:

93% (00:34) correct 6% (00:21) wrong based on 31 sessions


Quantity A
Quantity B
\((0.777777........)(0.8)(35)\)
\((1.8)(15)(0.7777777....)\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Re: 0.777777...... [#permalink] New post 18 Oct 2017, 04:44
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Quantity A and B have 0.77777... in common so we can divide by it and we are left with a comparison between 0.8*35 = 28 and 1.8*15 = 27. Quantity A is greater!
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Re: 0.77777777...... [#permalink] New post 02 Mar 2018, 12:57
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It's a good question.

We can divide both quantities by same number. So let's divide both by (0.7777...), we'll get:

Quantity A: (0.8) (35)
Quantity B: (1.8) (15)

Now, let's multiply both quantities by 10 to simplify 0.8 and 1.8. And then divide by 5 to simplify 35 and 15, i.e

Quantity A: (8) (7) = 56
Quantity B: (18) (3) = 54

Thus, Choice A is correct.
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Re: 0.77777777......   [#permalink] 02 Mar 2018, 12:57
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