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# The number of television sets sold by Store R last month was

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The number of television sets sold by Store R last month was [#permalink]  05 Mar 2017, 09:22
Expert's post
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5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

The number of television sets sold by Store R last month was approximately what percent less than the number of television sets sold by Store T last month?

A) 40%

B) 56%

C) 86%

D) 95%

E) 125%
[Reveal] Spoiler: OA

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Joined: 07 Jun 2014
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GRE 1: 323 Q167 V156
WE: Business Development (Energy and Utilities)
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Re: The number of television sets sold by Store R last month was [#permalink]  11 Mar 2017, 20:30
1
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Expert's post
Explanation

Find the number of TV sets sold by Store R:

Table: 40 in stock
Graph: 50% sold

50% of 40 = 0.50 \times 40 = 20

Find the number of TV sets sold by Store T:

Table: 50 in stock
Graph: 90% sold
90% of 50 = 0.90 \times 50 = 45

Use the percent change formula to find the approximate percent decrease:

Percent change = decrease \div original number \times 100

(45 - 20) \div 45 \times 100 = 25 \div 45 \times 100 = 0.555 \times 100 = 55.5%

Hence option B is correct.
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