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#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  # Average of 3 positive integer a,b,c is 111 b is 2 more than c then whi

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VP  D
Joined: 31 Oct 2013
Posts: 1492
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Average of 3 positive integer a,b,c is 111 b is 2 more than c then whi  [#permalink]

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Difficulty:   55% (hard)

Question Stats: 36% (01:28) correct 64% (01:54) wrong based on 14 sessions

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Average of 3 positive integer a,b,c is 111 b is 2 more than c then which of the following must be true ?

A. a is odd
B. b is odd
C. a is even
D. b is even
E. a + c is even
Manager  S
Joined: 16 Sep 2011
Posts: 107
Average of 3 positive integer a,b,c is 111 b is 2 more than c then whi  [#permalink]

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KSBGC wrote:
Average of 3 positive integer a,b,c is 111 b is 2 more than c then which of the following must be true ?

A. a is odd
B. b is odd
C. a is even
D. b is even
E. a + c is even

Avg of a,b,c is 111
a+b+c=333

b =c+2
hence a +c+2+c=333
a+2c=333-2=331
now 2c will always be even no matter what c is as the term is multiplied by 2 already
so for a+2 c to be an odd, a has to be odd. Average of 3 positive integer a,b,c is 111 b is 2 more than c then whi   [#permalink] 30 Nov 2019, 06:40
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# Average of 3 positive integer a,b,c is 111 b is 2 more than c then whi  