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First, rephrase the question: Is the integer 2b divisible by 6 ? --> we can turn this into: is (2b)/6 = some integer? Then, divide numerator and denominator by 2: is b/3 = some integer? Target question: Is b divisible by 3? (1) 8b is divisible by 3. We could rephrase as (8b)/3 = some integer Since ...
- by rahulprasad11
Mon Jul 18, 2016 10:05 am- Forum: Data Sufficiency
- Topic: Is the integer 2b divisible by 6 ? (1) 8b is divisible by
- Replies: 10
- Views: 3502
Hi eitijan, This question can be solved in a number of different ways, including prime factorization: We're told that 2B is an INTEGER. We're asked if 2B is divisible by 6. This is a YES/NO question. To be divisible by 6, a number must have at least one "2" and at least one "3" ...
- by rahulprasad11
Mon Jul 18, 2016 10:02 am- Forum: Data Sufficiency
- Topic: Is the integer 2b divisible by 6 ? (1) 8b is divisible by
- Replies: 10
- Views: 3502