A) 4.5 h
B) 5.5 h
C) 6 h
D) 5 h
Correct Answer: C
Solution :
\[\frac{4}{3}\times \]Usual time\[-\]Usual time = 2 \[\Rightarrow \] \[\frac{1}{3}\]Usual time = 2 \[\therefore \] Usual time \[=2\times 3=6\,\,\text{h}\]You need to login to perform this action.
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