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What percent of the integers between 200 and 999, inclusive, end with

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What percent of the integers between 200 and 999, inclusive, end with  [#permalink]

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New post 31 May 2018, 11:03
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Question Stats:

95% (01:11) correct 5% (01:48) wrong based on 47 sessions

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Re: What percent of the integers between 200 and 999, inclusive, end with  [#permalink]

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New post 31 May 2018, 12:05
Bunuel wrote:
What percent of the integers between 200 and 999, inclusive, end with the digits “03”?

(A) 1%
(B) 3%
(C) 4%
(D) 5%
(E) 25%


Total number of integers that ends with the digit "03" = 203,303,403,503,603,703,803,903 = 8

Total number of integers between 200 and 999 inclusive = 999 - 200 + 1 = 800

Therefore, the required percentage = (8 / 800) * 100 = 1 %
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Re: What percent of the integers between 200 and 999, inclusive, end with  [#permalink]

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New post 31 May 2018, 15:13
(999-200)+1 = 800 numbers in range

3 slots to fill.
First slot can take any 8 digits from 2-9 inclusive
second slot can take only 1 digit, 0
Third slot can take only 1 digit, 3

8*1*1 = 8
numbers in range = 800

(8/800)*100 = 1%

A
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Re: What percent of the integers between 200 and 999, inclusive, end with &nbs [#permalink] 31 May 2018, 15:13
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What percent of the integers between 200 and 999, inclusive, end with

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