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
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Correct Answer: 15 : 5 : 3
Solution : We know, $\text{Time} \propto \frac{1}{\text{Speed}}$ Required ratio of time = $1:\frac{1}{3}:\frac{1}{5}$ L.C.M. of 1, 3, and 5 is 15. = $1 × 15 : \frac{1}{3}×15:\frac{1}{5}×15$ = $15 : 5 : 3$ Hence, the correct answer is 15 : 5 : 3.
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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 4: 5 : 3 : 15
Question : The ratio of speed of the three racers is 5 : 2 : 1. What is the respective ratio of time taken by the three racers to cover the same distance?
Option 1: 2 : 5 : 10
Option 2: 2 : 5 : 8
Option 3: 5 : 2 : 10
Option 4: 2 : 5 : 3
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 time taken by A and B to cover a certain distance is 17 : 19. Find the ratio of their respective speed.
Option 1: 11 : 15
Option 2: 15 : 19
Option 3: 17 : 15
Option 4: 19 : 17
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
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