[[1]] is the least number that should be replaced for , so that the number 673012 is exactly divisible by 9 ?

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Detailed Solution

Concept- ‘* = 8’ such that the number 6730182 is divisible by 9. The sum of a number's digits must also be divisible by nine if the number itself is divisible by nine. Therefore, we must determine the solution so that the digit total is a multiple of nine. We can readily determine the answer since it is a number that is less than or equal to nine.
we can say a no. is nine-digit divisible when the sum of its digits is nine-digit divisible. Now, Sum of the digits in given number

, which is not divisible by 9 .
But, if we add 8 to this sum, it becomes

, which is divisible by 9 So, 6730182 is divisible by 9
Therefore, 8 should be substituted for * in the supplied number as it is the least number.
Hence, the correct answer is 8.

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