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number properties

Expert replies
Source: — Data Sufficiency |

by neelgandham » Thu Jan 12, 2012 9:02 am
When integer n is divided by 9, the remainder is 3. Is the integer divisible by 5?
1). When n is divided by 45, the remainder is 30
n = 45k+30 = 5*(9k+6) Divisible by 5 Sufficient
2). n is divisible by 2
n = 9k + 3 (from the question)
If k = 3, n = 30(Even) and is divisible by 5.
If k = 1, n = 12(Even) and is bot divisible by 5.
Insufficient

IMO A
Anil Gandham
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