1.

What least value must be assigned to * so that the number 197 * 5462 is r 9 ?

Answer»

Let the missing digit be x. 

Sum of digits = (1 + 9 + 7 + x + 5 + 4 + 6 + 2) = (34 + x). 

For (34 + x) to be divisible by 9, x must be replaced by 2 .

Hence, the digit in place of * must be 2.



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