A) \[20\text{ }km/h\]
B) \[30\text{ }km/h\]
C) \[24\text{ }km/h\]
D) \[18\text{ }km/h\]
Correct Answer: A
Solution :
Let the required speed be ?x? km/h. Speed is inversely proportional to the time taken. \[\therefore \] \[24:18\,\,:\,\,\,:\,\,x:15\] \[\Rightarrow \] \[x=\frac{24\times 15}{18}=20\] \[\therefore \] Satish must go at a speed of \[20\text{ }km/h\] to reach his school in 18 minutes.You need to login to perform this action.
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