Number System · Question 15 · Hard
How many 3-digit numbers are divisible by 6 but not by 9?
- 150
- 100
- 50
- 110
Answer and explanation
Answer: B. 100
Explanation: 3-digit multiples of 6: 166 − 16 = 150. Those also divisible by 9 are multiples of 18: 55 − 5 = 50. So 150 − 50 = 100.
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