I did this in an unconventional way:
10^4 - 10^2 = 9900 ---> 99 x 100
99 x 100 x 0,0012 ---> 99 x 0,12 = 11,88 thus the answer is E
10^4 - 10^2 = 9900 ---> 99 x 100
99 x 100 x 0,0012 ---> 99 x 0,12 = 11,88 thus the answer is E



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