A) 12 min
B) 15 min
C) 20 min
D) 25 min
Correct Answer: A
Solution :
Ratio of the speed of A, Band C = 6 : 3 : 1 So, the ratio of the time taken by A, B and C = 12 : 6 Therefore, time taken by A \[=\frac{72}{6}=12\]mYou need to login to perform this action.
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