Discussion
How many numbers amogst the numbers 9 to 54 are there which are exactly divisible by 9 but not by 3 ?
Answer: D
Correct answer: 0
Every multiple of 9 is also a multiple of 3, since \( 9 = 3 \times 3 \). So no number whatever can be divisible by 9 and not by 3, and the count is 0.
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