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If a, b, and c are three consecutive odd integers such that

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If a, b, and c are three consecutive odd integers such that [#permalink] New post 05 Nov 2008, 08:00
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If a, b, and c are three consecutive odd integers such that 10<a<b<c<20 and if b and c are prime numbers, what is the value of a + b?
(A) 24 (B) 28 (C) 30
(D) 32 (E) 36
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Re: DS - COnsecutive odd integers [#permalink] New post 05 Nov 2008, 08:27
a b c are consecutive odd integers

b c an are pirmes ..that are also consecutive..

17 19

then a=15

15+17= 32

D it is
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Re: DS - COnsecutive odd integers [#permalink] New post 05 Nov 2008, 08:34
D 32

10 < a < b < c < 20, consecutive odd ints, b & c are prime #'s

That means a=15, b=17, c=19... 15+17 = 32
Re: DS - COnsecutive odd integers   [#permalink] 05 Nov 2008, 08:34
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