1.

_$$\eqalign{ & \left( {1\frac{1}{2} + 11\frac{1}{2} + 111\frac{1}{2} + 1111\frac{1}{2}} \right) \cr & {\text{is equal to = ?}} \cr} $$$?

A. 617
B. 618
C. 1234
D. 1236
Answer» E.


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