MCQ
Mark $(\checkmark)$ against the correct answer:
How many $4-$digit numbers are there?
How many $4-$digit numbers are there?
- A$8999$
- ✓$9000$
- C$8000$
- DNone of these.
The largest four-digit number $= 9999$
The smallest four-digit number $= 1000$
Total number of all four-digit numbers $= (9999 - 1000) + 1$
$= 8999 + 1$
$= 9000$
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