A bus leaves the stop 30 minutes before the scheduled time. The driver decreases its speed by 30km/hr. At the next bus stop 180 km away, the bus reached on time. Find the original speed of the bus? A. 130km/hr B. 120km/hr C. 140km/hr D. None of these Answer Workspace Report Discuss Answer with explanation Answer: Option B Explanation Distance = 180km, actual speed = x and actual time = t 180 = x*t 180 = (x – 30)*(t +1/2) Solve both equation, we will get x = 120km/hr Workspace
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