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Each Mtype memory unit will increase the base memory
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18 Jun 2009, 13:32
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Each Mtype memory unit will increase the base memory capacity of a certain computer by 3 megabytes. What is the base memory capacity, in megabytes of the computer? (1) 2 Mtype memory units will increase the computers base memory capacity by 300 percent (2) The memory capacity of the computer after 2 Mtype memory units are added to the base memory capacity is 1.6 times the memory capacity of the computer after 1 Mtype memory unit is added to the base memory capacity. OPEN DISCUSSION OF THIS QUESTION IS HERE: eachmtypeunitwillincreasethebasememorycapacityofacertainc206395.html== Message from the GMAT Club Team == THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION. This discussion does not meet community quality standards. It has been retired. If you would like to discuss this question please repost it in the respective forum. Thank you! To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative  Verbal Please note  we may remove posts that do not follow our posting guidelines. Thank you.
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Re: Each Mtype memory unit will increase the base memory
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19 Jun 2009, 20:25
D
Stm 1. B+2M = 300% of B + B B + 6 = 4B B =2 Suff.
Stmt 2  B + 2M = 1.6(B+M) B + 6 = 1.6B + 4.8 B=2 Suff.



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Re: Each Mtype memory unit will increase the base memory
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19 Jun 2009, 22:25
mdfrahim wrote: D
Stm 1. B+2M = 300% of B + B B + 6 = 4B B =2 Suff.
Stmt 2  B + 2M = 1.6(B+M) B + 6 = 1.6B + 4.8 B=2 Suff. yes..! I agree with D
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Re: Each Mtype memory unit will increase the base memory
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14 Dec 2009, 22:56
Each Mtype memory unit will increase the base memory capacity of a certain computer by 3 megabytes. What is the base memory capacity, in megabytes of the computer?
(1) 2 Mtype memory units will increase the computers base memory capacity by 300 percent (2) The memory capacity of the computer after 2 Mtype memory units are added to the base memory capacity is 1.6 times the memory capacity of the computer after 1 Mtype memory unit is added to the base memory capacity.



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Re: Each Mtype memory unit will increase the base memory
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14 Dec 2009, 23:18
IMO D
from q stem we get if base mem=x 1M will inc base mem by 3>x+3 2m>2x+6
s1) [(2x+6)x]/x=3 > solving x=3 hence suff s2) 2x+6+x=1.6(x+3+x)>solving x=6 hence suff



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Re: Each Mtype memory unit will increase the base memory
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14 Dec 2009, 23:44
IMO D s1) one eqn and one variable hence suff s2) same one eqn and one variable hence suff
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Re: Each Mtype memory unit will increase the base memory
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15 Dec 2009, 03:38
delta09 wrote: Each Mtype memory unit will increase the base memory capacity of a certain computer by 3 megabytes. What is the base memory capacity, in megabytes of the computer?
(1) 2 Mtype memory units will increase the computers base memory capacity by 300 percent (2) The memory capacity of the computer after 2 Mtype memory units are added to the base memory capacity is 1.6 times the memory capacity of the computer after 1 Mtype memory unit is added to the base memory capacity.
IMO D
from q stem we get if base mem=x 1M will inc base mem by 3>x+3 2m>2x+6
s1) [(2x+6)x]/x=3 > solving x=3 hence suff s2) 2x+6+x=1.6(x+3+x)>solving x=6 hence suff Answer is D. But the above solution is not correct. The first indication of this is that the values of x from statement 1 and 2 are different. This never occur in GMAT. Statements in DS never contradict, nor they are giving the different answers.(1) x+6=4x > x=2. Sufficient. Note that increase by 300% equals to 4 times increase. (2) x+6=1.6(x+3) > x=2. Sufficient. Answer: D.
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Re: Each Mtype memory unit will increase the base memory
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15 Dec 2009, 07:26
Thank you, thank u Bunel, I got this one, but was cross checking.



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Re: Each Mtype memory unit will increase the base memory
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10 Jul 2011, 12:51
I have a small dobut...as per the question stem "Each Mtype memory unit will increase the base memory capacity of a certain computer by 3 megabytes. "...shouldn't the equation be "M = B +3" instead of "M = 3" which is taken in the above scenario.
I might be totally wrong..pls suggest!



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Re: Each Mtype memory unit will increase the base memory
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05 Dec 2013, 09:00
Each Mtype memory unit will increase the base memory capacity of a certain computer by 3 megabytes. What is the base memory capacity, in megabytes of the computer? (1) 2 Mtype memory units will increase the computers base memory capacity by 300 percent (2) The memory capacity of the computer after 2 Mtype memory units are added to the base memory capacity is 1.6 times the memory capacity of the computer after 1 Mtype memory unit is added to the base memory capacity.
Hi, the answer to above question is D i.e both the statements are individually sufficient to answer. However, I am unable to comprehend the question. Please help.



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Re: Each Mtype memory unit will increase the base memory
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05 Dec 2013, 09:07
Vidhi1 wrote: Each Mtype memory unit will increase the base memory capacity of a certain computer by 3 megabytes. What is the base memory capacity, in megabytes of the computer? (1) 2 Mtype memory units will increase the computers base memory capacity by 300 percent (2) The memory capacity of the computer after 2 Mtype memory units are added to the base memory capacity is 1.6 times the memory capacity of the computer after 1 Mtype memory unit is added to the base memory capacity.
Hi, the answer to above question is D i.e both the statements are individually sufficient to answer. However, I am unable to comprehend the question. Please help. Merging similar topics. Please refer to the solutions above.
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Re: Each Mtype memory unit will increase the base memory
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05 Dec 2017, 22:00




Re: Each Mtype memory unit will increase the base memory &nbs
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