Mathematics
The digit by which * should be replaced in 54 * 281 so that the number formed is divisible by 9 is
6
7
8
9
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Answer
For divisibility by 9, the sum of digits must be divisible by 9.
Sum of given digits (except *) = 5 + 4 + 2 + 8 + 1 = 20.
We need 20 + * to be divisible by 9.
20 + 7 = 27, which is divisible by 9.
So, * = 7.
Hence, option 2 is the correct option.
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