Question

21y s is multiple of 9, find value of 'y'

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Answer 1

Answer:y=6..........Mark brainliest

Step-by-step explanation:

For a number to be a multiple of 9,

The sum of digits of a number must be divisible by 9

Now, 2+1+y has to be divisible by 9

      =>3+y has to be divisible by 9

        As y is only one digit, only value of y can be 6 to make the number divisible by 9.

Thus, y=6