Q11 of 55 Page 82

If 486*7 is divisible by 9, then the least value of * is

We know that if sum of digits of a number is divisible by 9, then the number is divisible by 9.


Here,


4 + 8 + 6 + * + 7 = multiple of 9


* + 25 = 0, 9, 18, ….


Hence,


x + 25 = 27


∴ x = 2


∴ the least value of x is 2

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