Replace x in 54×23 so that the number is divisible by 11.
Note
For divisibility by 11, the alternating sum difference must be a multiple of 11. The valid digit(s) are 9.
Replace x in 54×23 so that the number is divisible by 11.
For divisibility by 11, the alternating sum difference must be a multiple of 11. The valid digit(s) are 9.