number properties

[sud21]

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
2). n is divisible by 2

[neelgandham]

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