Question

5. How many 4-digit numbers are there?
(a) 8999
(b) 9000 (0) 8000
(d) none of these​

Answer 1

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a 8999 is the correct answer

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Answer 2

Answer:

9000

Step-by-step explanation:

The smallest 4-digit number = 1000

The greatest 4-digit number = 9999

Total 4-digit number = ( 9999-1000) +1

= 8999+1

= 9000