MCQ
The total number of 4-digit numbers is
  • A
    8999
  • B
    9000
  • C
    8000
  • D
    9999

Answer

B. 9000
Explanation:
We know that the smallest four-digit number = 1,000. Largest four-digit number = 9,999. So the total number of four-digit numbers = [9,999 – 1,000] + 1 = 9,000.
Hence correct answer is option (b).

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