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An investor invests $10,000 at R percent simple annual interest and a

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An investor invests $10,000 at R percent simple annual interest and a  [#permalink]

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New post 17 Apr 2018, 05:47
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

77% (01:27) correct 23% (01:27) wrong based on 36 sessions

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Joined: 27 Feb 2018
Posts: 36
Location: India
WE: Engineering (Real Estate)
Re: An investor invests $10,000 at R percent simple annual interest and a  [#permalink]

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New post 17 Apr 2018, 06:07
Bunuel wrote:
An investor invests $10,000 at R percent simple annual interest and a different amount at P percent simple annual interest. What total amount did the investor invest?

(1) The total amount of interest earned by the two investments in one year is $1,800.
(2) R = 6.


The Ans. is E

(1) The total interest will not give the principal amount as long as P and R are unknown. Therefore insufficient.
(2) we still dont know the Prinicipal because P is unknown. Therefore insufficient.

(1) and (2) together will not give the value of P. Therefore insufficient.
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Re: An investor invests $10,000 at R percent simple annual interest and a  [#permalink]

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New post 18 Apr 2018, 09:59
We need below information to solve the problem

1. R%
2. P%
3. The Amount X invested at P %


Statement 1 : Total Interest = 1800

does not give any info about P, R and X - Not Sufficient


Statement 2: R = 6

P and X are unknown - Not sufficient

Statement 1 + 2

P and X are unknown . Hence IMO E
GMAT Club Bot
Re: An investor invests $10,000 at R percent simple annual interest and a   [#permalink] 18 Apr 2018, 09:59
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An investor invests $10,000 at R percent simple annual interest and a

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