A) 36
B) 64
C) 90
D) 120
Correct Answer: B
Solution :
Time taken \[=\frac{\text{Distance}}{\text{Time}}=\frac{\frac{4}{5}}{45}\text{h}=\frac{4\times 60\times 60}{5\times 45}=64\,\,\text{s}\]You need to login to perform this action.
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