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Joan bought a calculator at a discounted price that was 30 p

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Joan bought a calculator at a discounted price that was 30 p [#permalink] New post 04 Mar 2017, 08:15
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93% (00:37) correct 6% (00:31) wrong based on 30 sessions



Joan bought a calculator at a discounted price that was 30 percent less than the original price. If the discounted price of the calculator was $105, what was the original price?

A) $75

B) $120

C) $135

D) $150

E) $195
[Reveal] Spoiler: OA

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Re: Joan bought a calculator at a discounted price that was 30 p [#permalink] New post 10 Mar 2017, 17:03
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Explanation

Let the original price be P.

The original price (P) minus 30% of the original price (P) equals the discounted price.

P – 30% of P = $105

\(P - 0.30(P) = 105\)

\(0.70(P) = 105\)

\(P = 150\)

Hence option D is correct.
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Re: Joan bought a calculator at a discounted price that was 30 p [#permalink] New post 29 May 2018, 14:56
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Carcass wrote:



Joan bought a calculator at a discounted price that was 30 percent less than the original price. If the discounted price of the calculator was $105, what was the original price?

A) $75

B) $120

C) $135

D) $150

E) $195


If we let n = the original price of the calculator, we see that 0.7n is the discounted price. We can create the equation:

0.7n = 105

n = 105/0.7 = 150

Answer: D
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Re: Joan bought a calculator at a discounted price that was 30 p   [#permalink] 29 May 2018, 14:56
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