There are a large number of silver coins weighing 2 gm, 5 gm, 10 gm, 20 gm and 50 gm each. Consider the following statements:

1. To buy 45 gm of coins one must buy at least 3 coins.

2. To weigh 45 gm using these coins one can use less than 3 coins.

Which of the statements given above is/are correct?