How many odd integers are between 101 and 502, ends being : PS Archive
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# How many odd integers are between 101 and 502, ends being

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How many odd integers are between 101 and 502, ends being [#permalink]

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08 Sep 2006, 18:10
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How many odd integers are between 101 and 502, ends being inclusive?
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Joined: 20 Nov 2005
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Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
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08 Sep 2006, 21:09
lan583 wrote:
How many odd integers are between 101 and 502, ends being inclusive?

101 to 200 - 50 odds
201 to 300 - 50 odds
301 to 400 - 50 odds
401 to 500 - 50 odds
and 501.

Total = 201
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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

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09 Sep 2006, 13:59
Total number including 101 and 502 = 502 -101+1 = 402

and since the set {101........502) starts in odd and ends in even thus the nymber off odds = number of even = 402/2 = 201
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09 Sep 2006, 16:50
total numbers = 502-101+1 = 402

even numbers....
102.....502

=2[51 - 251]

gives us 251-51+1 evens
=201 evens

odds = total - evens = 402-201=201
09 Sep 2006, 16:50
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