1.

P walked from place C to D covering the distance of 25 km and walked from place D to E covering the distance of 60 km in the total time of 6 hours at constant speed. Find the average speed at which P walked to cover distance between place C and place E? 1. 15.67 km/hr2. 20.167 km/hr3. 14.167 km/hr4. 25 km/hr

Answer» Correct Answer - Option 3 : 14.167 km/hr

Given:

P walked from place C to D covering the distance of 25 km and walked from place D to E covering the distance of 60 km in the total time of 6 hours at constant speed.

Concepts used:

Time = Distance/Speed

Calculation:

Let the speed be x km/hr.

Time = Distance/Speed

⇒ 6 = 25/x + 60/x

⇒ 6 = 85/x

⇒ x = 85/6 km/hr

⇒ x = 14.167 km/hr

∴ Speed at which P walked from place C to E is 14.167 km/hr.



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