A) 12 minutes
B) 24 minutes
C) 36 minutes
D) 48 minutes
Correct Answer: C
Solution :
Ratio of the speeds of \[A\] and\[B=2:3\]. Hence, using Relative Speed strategy (5), we get the time taken by them in the ratio\[3:2\] \[i.e.\] \[A:B=3:2.\] It is given that \[B\] takes \[24\] minutes to cover a distance, we need to find the time taken by\[A\]. Let \[x\] be this time taken \[\therefore \] \[\frac{3}{2}=\frac{x}{24}\] \[\Rightarrow \] \[x=\frac{24\times 3}{2}=36\]minutes So, time taken by \[A=36\] minutes.
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