A train 150 m long passes a pole in 15 seconds and crosses another train of the same length travelling in opposite directions in 8 seconds. The speed of the second train in (km/h) is:
A. 60km/hr
B. 66km/hr
C. 72km/hr
D. 99km/hr
সঠিক উত্তরঃ
D.
99km/hr
Explanation:
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