Pavel was cycling at 30 km/h and was passed by Ratan who was cycling at 40km/h. If Ratan cycles for c minutes at his speed and then stops, how long in minutes, will it take for Pavel to reach him?
A. 2c
B. с
C. c/2
D. c/3
E. 4c/3
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সঠিক উত্তরঃ
E.
4c/3
Explanation:
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