Question
In the following numbers, replace $*$ by the smallest number to make it divisible by $9:$
$6702*$

Answer

$67023$
Here, $6 + * + 7 + 0 + 2 = 15 + *$ should be a multiple of $9.$
To be divisible by $9, $the least value of $*$ should be $3,$ i.e., $15 + 3 = 18,$ which is a multiple of $9.$
$\therefore * = 3$

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