What is the number eleven thousand eleven hundred and eleven mulplied by 2?

                a. 11122

                b. 12122

                c. 24222

                d. 22222

                e. None of the above

If your answer is d. 222222, then you are absolutely wrong.

The correct answer is c. 24222. Why?

11000* 2 = 22000

 1100 *2  =  2200 and 

    11 *2 =       22

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Total      = 24222