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"The winning relay team in a high school sports competition clocked 4-8 minutes for a distance of 13.2 km. Its runners A, B, C and D maintained speeds of 15 kmph, 16 kmph, 17 kmph and 18 kmph respectively. What is the ratio of the time taken by B to that taken by D?" in CAT Coaching classes
c) Since it is a relay race, all the runners ran the same distance. Hence for a same distance, (ratio of times) = 1/(ratio of speeds). Hence ratio of times taken by B t& D = 18 : 16 = 9 : 8.
"Which books are best to prepare for CAT exams ? I am a fresher to mathematics." in CAT Coaching classes
best i can refer you our own study material. Everything is there. If you study that, you don't need to cover anything else.
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