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  1. What least value must be given to * so that the number 97215*6 is divisible by 11 ?
    1. 1
    2. 2
    3. 3
    4. 5
Correct Option: C

If sum of ODD positioned digits minus the sum of the EVEN positioned digits is divisible by 11 then the number is divisible by 11.

Sum of odd positioned digits - sum of even positioned digits = (9 + 2 + 5 + 6) - (7 + 1 + x) =14 - x

It must be divisible by 11. So x = 3.



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