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Math Expert V
Joined: 02 Sep 2009
Posts: 56307
An investor invests \$10,000 at R percent simple annual interest and a  [#permalink]

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Difficulty:   25% (medium)

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

### HideShow timer Statistics 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.

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Intern  B
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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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.
Intern  B
Joined: 18 Jul 2016
Posts: 34
Re: An investor invests \$10,000 at R percent simple annual interest and a  [#permalink]

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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 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  