JEE Main 2019 Mathematics question
The number of four-digit numbers strictly greater than 4321 that can be formed using the digits 0, 1, 2, 3, 4, 5 (repetition of digits is allowed) is:
Answer: (C)
Solution
5xxx: 216; 44xx, 45xx: 72; 433x–435x: 18; 4322–4325: 4; total 310.