A) 4 ; 3 : 5
B) 5 : 3 : 4
C) 15:9:20
D) 15:20:12
Correct Answer: D
Solution :
[d] When the distance remains the same, then time taken is inversely proportional to the speeds. \[\Rightarrow \] Ratio of time taken \[=\frac{1}{4}:\frac{1}{3}:\frac{1}{5}\] = 15 :20: 12You need to login to perform this action.
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