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If it were discovered that the import dollar amount shown fo

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If it were discovered that the import dollar amount shown fo [#permalink] New post 18 May 2018, 11:24
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25% (00:00) correct 75% (01:56) wrong based on 4 sessions
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If it were discovered that the import dollar amount shown for 1978 was incorrect and should have been $5.3 billion instead, then the average (arithmetic mean) import dollar amount per year for the 17 years would be how much less?

(A) $100 million

(B) $53 million

(C) $47 million

(D) $17 million

(E) $7 million
[Reveal] Spoiler: OA

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Re: If it were discovered that the import dollar amount shown fo [#permalink] New post 19 May 2018, 06:49
As per graph it is 7 billion. If it is actually 5.3 then it is reduced by 1.7.
When this is equally distributed among all the 17 years, it would reduce each of them by 0.1 or 100 million.
Hence the answer
Re: If it were discovered that the import dollar amount shown fo   [#permalink] 19 May 2018, 06:49
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