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52% (01:45) correct
47% (00:33) wrong based on 1 sessions
what is the quickest way of solving this problem?
a mixture of nuts is to contain 3 parts cashews to 6 parts almonds to 7 parts walnuts by weight. How many pounds of almonds will be needed to make 5 pounds of the mixture?
a.) 3/8
b.) 8/15
c.) 6/5
d.) 5/3
e.) 15/8
answer: e
also, are there any other tricks/pointers that ya'll might know of that involve ratios? thanks a lot!
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Director
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a mixture of nuts is to contain 3 parts cashews to 6 parts almonds to 7 parts walnuts by weight. How many pounds of almonds will be needed to make 5 pounds of the mixture?
a.) 3/8
b.) 8/15
c.) 6/5
d.) 5/3
e.) 15/8
First of all, write the ratios in a mixture.
The cashews, almonds and walnuts are in ratio 3:6:7
It means that, in 16 pounds of mixture, cashews are 3 pounds, almonds are 6 pounds, walnuts are 7 pounds
So in 5 pounds of mixture the almonds will be = 6*5/16 = 15/8
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GMAT Club Legend
Joined: 07 Jul 2004
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c:a:w = 3:6:7
Total number of parts = 16
So 5 pounds = 16 parts.
Therefore 6 parts = 6/16 * 5 = 15/8 pounds,
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Director
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Ratio of almonds to the mixture = 6 / 16
for a mixture of 5 --> almonds = 5 x 6/16 = 30/16 = 15/8
Answer: E
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Manager
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I write the following on my paper:
C A W = T
3 6 7 = 16
X = 5
Then after simplification X = 15/8. Answer e.
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Manager
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First write out the ratio:
3:6:7
Now we add x as the number of pounds of each part:
3x+6x+7x=5(the total # of pounds needed)
16x=5 --> x=5/16
This means that each pounds is 5/16 of the total.
Multiply this by the 6 parts of almonds and you get:
(5/16)*6 = 30/16 = reduces to 15/8
Answer: E
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SVP
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Re: ratio question [#permalink]
 14 Aug 2009, 01:38
what is the quickest way of solving this problem?
a mixture of nuts is to contain 3 parts cashews to 6 parts almonds to 7 parts walnuts by weight. How many pounds of almonds will be needed to make 5 pounds of the mixture?
a.) 3/8
b.) 8/15
c.) 6/5
d.) 5/3
e.) 15/8
16 x = 5 pounds , x = 5/16
Almonds weight = 5/16*6 = 15/8
also, are there any other tricks/pointers that ya'll might know of that involve ratios? thanks a lot![/quote]
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Manager
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Re: ratio question [#permalink]
25 Jan 2010, 23:05
CAW
3:6:7
A = 6/16
6/16=x/5
x=15/8
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Manager
Joined: 10 Feb 2010
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Re: ratio question [#permalink]
12 Feb 2010, 19:06
6 out of 16 => ? out of 5
solving 15/8
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Intern
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Re: ratio question [#permalink]
04 Oct 2010, 17:33
16 ---------- 6
5 ----------- x
Cross multiplication:
X = 15/8
Maybe this is the easyest way to solve.
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Manager
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Re: ratio question [#permalink]
13 Mar 2011, 02:30
easier problem than the ones ive seen on here...
3x+6x+7x = 5
x= 5/16
6x = 6(5/16) = 5/8
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Director
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Re: ratio question [#permalink]
14 Dec 2011, 12:34
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Re: ratio question
[#permalink]
14 Dec 2011, 12:34
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close
