A bill for ₹1,000 is paid in the denominations of ₹100, ₹50 and ₹20 notes. 40 notes in all are used. Consider the following statements:

1. 25 notes of ₹100 are used and the remaining are in the denominations of ₹50 and ₹20.

2. 30 notes of ₹50 are used and the remaining are in the denominations of ₹100 and ₹20.

3. 15 notes of ₹20 are used and the remaining are in the denominations of ₹100 and ₹50.

Which of the above statements are not correct?