A) \[{{7}^{-1}}\times {{12}^{-1}}\]
B) \[7\times {{12}^{-1}}\]
C) \[{{7}^{-1}}\times 12\]
D) \[(1/7)\,\times \,{{12}^{-1}}\]
E) None of these
Correct Answer: B
Solution :
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