Speed of three train are in ratio 2 : 3 : 4 . Find the ratio of time taken by them .
Answer & explanation
Correct answer: option 2
Speed = \(\frac{Distance}{Time }\)
Ratio of speed and time is inverse to each other .
given ratio T1 : T2 : T3
Speed 2 : 3 : 4
time \(\frac{1}{2 }\) : \(\frac{1}{3 }\) : \(\frac{1}{4 }\)
6 : 4 : 3
so ratio of time = 6 : 4 : 3