A) \[5\times 3\times 7\times 10\]
B) \[6\times 3\times 9\times 11\]
C) \[6\times 2\times 12\times 10\]
D) \[6\times 4\times 8\times 9\]
Correct Answer: C
Solution :
\[\begin{matrix} 7 & \times & 9 & \times & 6 & \times & 5 \\ -2\downarrow & {} & -2\downarrow & {} & -2\downarrow & {} & -2\downarrow \\ 5 & \times & 7 & \times & 4 & \times & 3 \\ \end{matrix}\] Similarly \[\begin{matrix} 8 & \times & 4 & \times & 14 & \times & 12 \\ -2\downarrow & {} & -2\downarrow & {} & -2\downarrow & {} & -2\downarrow \\ 6 & \times & 2 & \times & 12 & \times & 10 \\ \end{matrix}\]
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