A driver of an auto rickshaw sees a lorry 60 meters ahead of him. After 30 seconds the lorry is 90 meters behind. If the speed of the auto rickshaw is \(38~km/h,\( then what is the speed of the lorry?
A. क \(23~km/h\)
B. ख \(20~km/h\)
C. গ \(25~km/h\)
D. ঘ \(18~km/h\)
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সঠিক উত্তরঃ
D.
ঘ \(18~km/h\)
Explanation:
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