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Bunuel
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David and Suzy each spent $450 in 2013. In 2014, David spent 10 percen 07 Apr 2021, 04:45
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C
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Difficulty:

45% (medium)

Question Stats:

70% (02:09) correct 30% (02:25) wrong based on 275 sessions

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David and Suzy each spent $450 in 2013. In 2014, David spent 10 percent more than he did in 2013, and together he and Suzy spent a total of $600. Approximately by what percent less did Suzy spend in 2014 than she did in 2013?

(A) 23%
(B) 66%
(C) 77%
(D) 80%
(E) 83%
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C
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David and Suzy each spent $450 in 2013. In 2014, David spent 10 percen 15 Apr 2021, 03:14
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David spent 1.1 x 450 = 495
Suzy therefore spent = 600 - 495 = 105

105 - 450 / 450 = -345/450 = -69/90 or approximately -70/90 which is -77.(7)%

Answer C
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David and Suzy each spent $450 in 2013. In 2014, David spent 10 percen 16 Apr 2021, 09:14
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Bunuel
David and Suzy each spent $450 in 2013. In 2014, David spent 10 percent more than he did in 2013, and together he and Suzy spent a total of $600. Approximately by what percent less did Suzy spend in 2014 than she did in 2013?

(A) 23%
(B) 66%
(C) 77%
(D) 80%
(E) 83%
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Solution:

We see that David spent 450 x 1.1 = $495 in 2014, and thus Suzy spent 600 - 495 = $105. Therefore, Suzy spent 450 - 105 = $345 or 345/450 ≈ 0.77 = 77% less in 2014 than in 2013.

Answer: C
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David and Suzy each spent $450 in 2013. In 2014, David spent 10 percen 13 Oct 2025, 12:04
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