Question

817*67 by 11 replace *by the smallest no

Answer 1

to divide by 11 the difference of sum of the digits on even place and odd place must be 0 or the multiple of 11.
so 21 - (7+x+1)
21 - 8 - x
13 - x
so if we put x = 2 then the relation is 0 hence 2 answer