Aptitude:speed and distance [Section 1 of 1] Q20 of 30 Marks 1 General Instructions 100% ×CloseTest time left: 08:55Select the correct answerIf a person covers the same distance by walking by cycling and by running with speeds in the ratio 1 : 9 : 3 respectively, then the ratio of their times and speeds of the three modes of travel is?
Question
Aptitude:speed and distance [Section 1 of 1] Q20 of 30 Marks 1 General Instructions 100% ×CloseTest time left: 08:55Select the correct answerIf a person covers the same distance by walking by cycling and by running with speeds in the ratio 1 : 9 : 3 respectively, then the ratio of their times and speeds of the three modes of travel is?
Solution
The ratio of speeds for walking, cycling, and running is given as 1 : 9 : 3.
The time taken to cover the same distance is inversely proportional to the speed. This means if the speed is high, the time taken is less and if the speed is low, the time taken is more.
So, the ratio of times for walking, cycling, and running would be the inverse of the speed ratio.
Hence, the ratio of their times would be 1/1 : 1/9 : 1/3, which simplifies to 9 : 1 : 3.
Therefore, the ratio of their times and speeds of the three modes of travel is 9 : 1 : 3 for time and 1 : 9 : 3 for speed.
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