At what speed must train C travel on Day 2 such that it crosses the platform of 500 meter in half of...........

Quantitative Aptitude ( CCS) Mixed Chart

Directions: Following Line Graph represents the uniform speed of Trains (A, B, C, D and E) on two different days in meter per second and the Bar Chart represents the length of each train in meter.

At what speed must train C travel on Day 2 such that it crosses the platform of 500 meter in half of the expected time?

139 m/s

149 m/s

159 m/s

Data insufficient

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Explanation:

Expected time = (125+500)/ 70
= 9 seconds
Speed needed to cross the platform in 4.5 sec = (125+ 500)/4.5
= 139 m/s
Hence, option 1 is the correct answer.