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If cement, gravel and sand are to be mixed in 7:10:13

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Joined: 25 Jan 2013
Posts: 24
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Kudos [?]: 5 [0], given: 11

If cement, gravel and sand are to be mixed in 7:10:13 [#permalink] New post 21 Feb 2013, 07:10
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Difficulty:

  35% (medium)

Question Stats:

76% (02:47) correct 24% (02:01) wrong based on 59 sessions
If cement, gravel and sand are to be mixed in 7:10:13 and 8 tons of cement is available how many tons of mixture can be produced assuming that sufficient gravel and sand is readily available.

A. 35 7/8
B. 36
C. 34 2/7
D. 34 5/7
E. 34 6/7
[Reveal] Spoiler: OA
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Joined: 02 Sep 2009
Posts: 29641
Followers: 3488

Kudos [?]: 26210 [0], given: 2706

Re: If cement, gravel and sand are to be mixed in 7:10:13 [#permalink] New post 21 Feb 2013, 07:16
Expert's post
antoxavier wrote:
If cement, gravel and sand are to be mixed in 7:10:13 and 8 tons of cement is available how many tons of mixture can be produced assuming that sufficient gravel and sand is readily available.

A. 35 7/8
B. 36
C. 34 2/7
D. 34 5/7
E. 34 6/7


Cement:Gravel:Sand = 7:10:13 --> total of 7+10+13 = 30 parts.

If we use 8 tons of cement, then we'll get 8/7*30 = 34 2/7 tons of mixture.

Answer: C.
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Re: If cement, gravel and sand are to be mixed in 7:10:13   [#permalink] 21 Feb 2013, 07:16
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