Question

46*217 divisible by 9.. replace *

Answer 1

Divisibilty rule of 9 states that if the sum of digit of number is divisible by 9 then the number is divisible by 9.
So,4+6+2+1+7=20
We need to take the value of * which will make the sum divisible by nine.
So we will take the nearest value that can be divisible by 9.
Lets take the value of * as 7.
Then 4+6+7+1+7=27
Which is divisble by 9.

Answer 2

7
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