Question : The three racers' speed ratio is 3 : 2 : 4. What is the respective ratio of time taken by the three racers to cover the same distance?

Option 1: 6 : 8 : 9

Option 2: 4 : 8 : 5

Option 3: 10 : 8 : 3

Option 4: 4 : 6 : 3

Question : The ratio of the speed of Aman, Kamal, and Manan is 2 : 3 : 4 respectively. What is the ratio of the time taken by Aman, Kamal, and Manan respectively to cover the same distance?

Option 1: 4 : 3 : 2

Option 2: 2 : 3 : 4

Option 3: 6 : 4 : 3

Option 4: 8 : 9 : 16

Question : A train covers a certain distance in 210 minutes at a speed of 60 km/hr. The time taken by the train, to cover the same distance at a speed of 80 km/hr is:

Option 1: $3\frac{5}{8}\ \text{hours}$

Option 2: $2\frac{5}{8}\ \text{hours}$

Option 3: $4\frac{5}{8}\ \text{hours}$

Option 4: $3\ \text{hours}$

Question : The speeds of the three cars are in the ratio of 1 : 3 : 5. The ratio among the time taken by these cars to travel the same distance is _____.

Option 1: 3 : 5 : 15

Option 2: 15 : 3 : 5

Option 3: 15 : 5 : 3

Option 4: 5 : 3 : 1

Question : The speeds of the three cars are in the ratio of 1 : 3 : 5. The ratio of the time taken by these cars to travel the same distance is:

Option 1: 3 : 5 : 15

Option 2: 15 : 3 : 5

Option 3: 15 : 5 : 3

Option 4: 5 : 3 : 15