Q. 295.0( 2 Votes )

If the number 725

Answer :

Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number.


7 – 2 + 5 – 4 + * - 9 + 8 = (5 + *)


For 7254 * 98 to be divisible by 11,


(5 + *) must also be divisible by 11


Hence, 5 + * = 11


* = 11 - 5


= 6

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