The speeds of 3 cars in the ratio 2:3:4. The ratio between time taken by them to travel the same distance is?  Pick
A) 2:3:4 B) 6:4:3 C) 8:7:5 D) 11:12:15 E) 9:2:5
Ratio of time taken is = 1/2 : 1/3 : 1/4 = 6:4:3   Answer is 6:4:3
<result>B</result>
The speeds of 3 cars in the ratio 2:3:4. The ratio between time taken by them to travel the same distance is?