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# A portion of $6600 is invested at a 5% annual return, while  Question banks Downloads My Bookmarks Reviews Important topics Author Message TAGS: Senior Manager Joined: 23 Aug 2003 Posts: 462 Location: In the middle of nowhere Followers: 1 Kudos [?]: 12 [0], given: 0 A portion of$6600 is invested at a 5% annual return, while [#permalink]  12 Feb 2004, 10:08
A portion of $6600 is invested at a 5% annual return, while the remainder is invested at a 3% annual return. If the annual income from the portion earning a 5% return is twice that of the other portion, what is the total income from the two investments after one year? (A)$180
(B) $270 (C)$300
(D) $320 (E)$360

(I do not have the official answer)

Vivek.
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"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"

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[#permalink]  12 Feb 2004, 10:27
B) 270
Let X be the portion invested at 5%
Let (6600 - X) the portion invested at 3%
.05X / .03 * [6600 - X] = 2/1
.05X = .06 * [6600-X]
.05X = 396 - .06X
.11X = 396
X = 3600$6600 - X = 3000$
3600 * .05 + 3000 * .03 = 180 + 90 = 270
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Paul

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[#permalink]  12 Feb 2004, 10:32
Excellent ..thanks for the explanation Paul...

Vivek.
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"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"

[#permalink] 12 Feb 2004, 10:32
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# A portion of \$6600 is invested at a 5% annual return, while

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