Question
If the number 985212m8 is completely divisible by 11,
then the smallest whole number in place of βmβ would be:Solution
We know that: A number is divisible by 11 if difference between the sum of its digits at odd places and the sum of its digits at even places is either 0 or a number divisible by 11. Given number = 985212m8 βSo, (8+2+2+8) - (m+1+5+9) = (5 - m), which must be divisible by 11 β΄ m = 5
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