A) \[1\text{ }km\text{ }{{h}^{-1}}\]
B) \[5\text{ }km\text{ }{{h}^{-1}}\]
C) \[12\,km\,{{h}^{-1}}\]
D) \[~60\text{ }km\text{ }{{h}^{-1}}\]
Correct Answer: D
Solution :
\[60\,\min \,\_\_\_1\,h\] \[\text{5}\,\text{min}\text{.}\,\text{ }\!\!\_\!\!\text{ }\!\!\_\!\!\text{ }\!\!\_\!\!\text{ }\frac{\text{1}}{\text{60}}\,\text{ }\!\!\times\!\!\text{ }\,\text{5}\,\text{=}\,\frac{\text{1}}{\text{12}}\,\,\text{h}\] \[\text{Speed}\,\text{=}\,\frac{\text{Distance}}{\text{Time}}\,\text{=}\,\,\frac{\text{5}}{\text{1/12}}\] \[=5\times 12=60\,km\,{{h}^{-1}}\]
You need to login to perform this action.
You will be redirected in
3 sec
