How many numbers between 500 and 600 are that contain only a single 9?
- 18
- 17
- 16
- None of these
Explanation
Numbers between 500–599 have hundreds digit 5. Tens and units can vary 0–9.
To have exactly one 9: either tens = 9 and units ≠ 9 (9 choices) or tens ≠ 9 and units = 9 (9 choices). Total = 9 + 9 = 18.
Related MCQs
- 39
- 38
- 37
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 35
- 29
- 33
- 27
اس سوال کو وضاحت کے ساتھ پڑھیں
- 24680
- 35791
- 24679
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
