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(1) The total interest of the two accounts is $600. (2) The interest from the account with 10% interest rate is 1.8 times as much as the interest from the account with 6% interest rate. A suff as remgeo explained B-- suff 10/100 *x=1.8(6/100*(10000-x) x cna be calculated.Hence suff Answer is D VP Joined: 30 Sep 2004 Posts: 1488 Location: Germany Followers: 6 Kudos [?]: 332 [0], given: 0 ### Show Tags 26 Nov 2005, 09:32 D)... 1) 0,1x+0,06(10000-x)=600 suff 2) 0,1x=1,8(0,06(10000-x) suff _________________ If your mind can conceive it and your heart can believe it, have faith that you can achieve it. Senior Manager Joined: 03 Nov 2005 Posts: 396 Location: Chicago, IL Followers: 3 Kudos [?]: 51 [0], given: 17 ### Show Tags 26 Nov 2005, 10:09 x+y=10,000 is given from the stem. (1) .1x+.06y=600. Two equations, two unknowns. Sufficient (2).1x/.06 y=1.8 Two equations, two unknowns.Sufficient. D. _________________ Hard work is the main determinant of success Current Student Joined: 28 Dec 2004 Posts: 3384 Location: New York City Schools: Wharton'11 HBS'12 Followers: 15 Kudos [?]: 286 [0], given: 2 ### Show Tags 26 Nov 2005, 10:17 what if he put$0 in the 10% account? isnt that a possibility?

if we say he has to put some money into the 10% account then ans is D otherwise I would say C...
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26 Nov 2005, 11:18
A is insufficient as we do not know for how many years he deposited money in two accounts.

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26 Nov 2005, 11:32
duttsit wrote:
A is insufficient as we do not know for how many years he deposited money in two accounts.

good catch...
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26 Nov 2005, 17:20
duttsit wrote:
A is insufficient as we do not know for how many years he deposited money in two accounts.

Duttsit// Exactly what I thought. I thought it should be E since we do not know how many years. However, the OA is D. I guess the OA is wrong.
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26 Nov 2005, 20:29
This is what I thought when I first read the question too but then I realized this question is talking about yearly interest.

I think the interpretation of this question is that you only calculate interest when the year was over, because it did not talked about monthly interest. In other words, when the interest is $600, you know it would be at least one year since you've got interest. However it won't be two years or more because you would get more interest than$600 no matter how you allocate your money. In other words the number of years is known.
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26 Nov 2005, 20:34
HongHu wrote:
This is what I thought when I first read the question too but then I realized this question is talking about yearly interest.

I think the interpretation of this question is that you only calculate interest when the year was over, because it did not talked about monthly interest. In other words, when the interest is $600, you know it would be at least one year since you've got interest. However it won't be two years or more because you would get more interest than$600 no matter how you allocate your money. In other words the number of years is known.

Are you saying the ans for S1 will be 0 as 600 will be interest rate if whole 10,000 was deposited into 6% interest rate account?
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26 Nov 2005, 20:41
HongHu wrote:
Yes.

Thanks HongHu, I would have never figured out this wisdom
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26 Nov 2005, 20:48
Hmmm that use of "wisdom" sounds rather cynical. But yes I do think that $600 figure is carefully chosen for that question. _________________ Keep on asking, and it will be given you; keep on seeking, and you will find; keep on knocking, and it will be opened to you. VP Joined: 22 Aug 2005 Posts: 1120 Location: CA Followers: 1 Kudos [?]: 103 [0], given: 0 ### Show Tags 26 Nov 2005, 20:56 HongHu wrote: Hmmm that use of "wisdom" sounds rather cynical. But yes I do think that$600 figure is carefully chosen for that question.

Agree...

well i should have called "trap"
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26 Nov 2005, 20:56
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