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Q.

How many numbers between 9 and 54 are exactly divisible by 9 but not by 3?


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a

8

b

6

c

5

d

None of these 

answer is D.

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Detailed Solution

It is given the numbers 9 and 54.
According to the rule,
Any number which is divisible by 9 is also divisible by 3.
Therefore, no number between 9 and 54 is there, which is exactly divisible by 9 and not by 3.
Hence, the correct option is 4.
 
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