rrect answerThree cars travelled distance in the ratio 1 : 2 : 3. If the ratio of the time of travel is 3 : 2 : 1, then the ratio of their speed is?Options3 : 9 : 11 : 2 : 41 : 3 : 94 : 3 : 2Finish ClearPrev Next
Question
rrect answerThree cars travelled distance in the ratio 1 : 2 : 3. If the ratio of the time of travel is 3 : 2 : 1, then the ratio of their speed is?Options3 : 9 : 11 : 2 : 41 : 3 : 94 : 3 : 2Finish ClearPrev Next
Solution
The ratio of speed can be calculated using the formula: Speed = Distance / Time.
Given, the ratio of distance is 1 : 2 : 3 and the ratio of time is 3 : 2 : 1.
For the first car, speed = 1/3. For the second car, speed = 2/2 = 1. For the third car, speed = 3/1 = 3.
Therefore, the ratio of their speed is 1/3 : 1 : 3.
To simplify this ratio, we multiply each term by 3 (to get rid of the fraction in the first term), we get 1 : 3 : 9.
So, the correct answer is 1 : 3 : 9.
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