A) 10
B) 13
C) 15
D) 8
Correct Answer: B
Solution :
\[\text{12}+\text{27}=\text{39}=\text{3}\times \text{13}\]. \[\begin{align} & \underline{\begin{matrix} T & O \\ 1 & 3 \\ \times & 3 \\ \end{matrix}} \\ & \underline{\,3\,\,\,\,\,\,\,\,\,9} \\ \end{align}\]You need to login to perform this action.
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