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ashikaverma13
GMAT 1: 640 Q47 V31
Posts: 126
28 Dec 2016, 10:49
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
61% (01:56) correct
39%
(02:11)
wrong
based on 246
sessions
History
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Not Attempted Yet
Material M costs $10 per kg, and material N costs $20 per kg. If 25 kg of Material K consists of p kg of material M and q kg of material N, is p<q?
1. p<13
2. The cost per kg of material K is greater than $15.
1. p<13
2. The cost per kg of material K is greater than $15.
01 May 2018, 05:55
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Quote:
Material M costs $10 per kg, and material N costs $20 per kg. If 25 kg of Material K consists of p kg of material M and q kg of material N, is p<q?
1. p<13
2. The cost per kg of material K is greater than $15.
1. p<13
2. The cost per kg of material K is greater than $15.
Statement 1: If p<13 we can't conlcude whether p<q. If p=12,7 then q=12,3 so p>q. If p=3 then q=22 and hence q>p. Statement 1 is insufficient.
Statement 2: We should see that 15$ is in the middle between the cost of material m and n. So if the average cost/kg for material K > 15$ we can infer that there must be more material n than material m because n is more expensive and shifts the average costs towards 20$. Statement 2 is sufficient.
In conclusion, the correct answer is B.
General Discussion
28 Dec 2016, 10:53
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ashikaverma13
Material M costs $10 per kg, and material N costs $20 per kg. If 25 kg of Material K consists of p kg of material M and q kg of material N, is p<q?
1. p<13
2. The cost per kg of material K is greater than $15.
1. p<13
2. The cost per kg of material K is greater than $15.
This is a copy of the following Official Guide question: material-a-costs-3-per-kilogram-and-material-b-costs-109070.html
