Are A, B, and C consecutive integers? C-B = A-B A, B, and C are all i

Question

Are A, B, and C consecutive integers?

(1) C-B = A-B
(2) A, B, and C are all integers

mcmoorthy · Answer

1 says A+C is 2B
Insufficient since A B and C can be non integers too
2 says A B and C are integers
Insufficient
But 1 and 2 together gives ABC as consecutive integers with B as the middle number.

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KrishnakumarKA1 · Answer

St 1: C-B = A-B. Hence A = C. therefore they are not consecutive integers. ANSWER
St 2: INSUFFICIENT as no further data has been provided

Option A

umg · Answer

Please check your calculation again.

Statement (1) is => C-B = A-B

=> C = A - B + B = A

i.e. C = A.

Hence A, B, and C are not consecutive integers as A & C are same.

Answer - Option A

mvictor · Answer

1. rewrite it as C-B+B=A or C=A - we know for SURE that A,B,C are not consecutive. moreover, we don't care if they are integers or not - we definitely know that A=C, and in this case, there is no way for them to be consecutive integers.
2. doesn't tell us much

mcmoorthy · Answer

My bad folks. Thanks for the correction.

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Bunuel · Answer

VERITAS PREP OFFICIAL SOLUTION:

Solution: A

Statement (2) is insufficient on its own, as it allows for the integers to be spread across the entire number line; INSUFFICIENT.

If we add B to both sides of statement (1), however, we learn that C = A. If C = A, the integers cannot be consecutive, as at least two of them equal each other; SUFFICIENT, (A).

SaquibHGMATWhiz · Answer

Solution:      
  Pre Analysis:  
  We are asked if A, B and C are consecutive integers or not   This is a YES-NO question

Statement 1:   C - B = A - B
  According to this statement, A = C and I can answer the question with a NO 
 A, B, C are NOT consecutive integer 
 Thus,  statement 1 alone is sufficient and we can eliminate options B, C and E

Statement 2:   A, B, and C are all integers
  No idea if they are consecutive or not

Hence the right answer is    Option A

Are A, B, and C consecutive integers? C-B = A-B A, B, and C are all i

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GMAT Data Sufficiency (DS) Questions

Are A, B, and C consecutive integers? C-B = A-B A, B, and C are all i

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