Question

Time (A to B) = 3 hours,
Time (B to C) = 5 hours,
Time (C to D) = 6 hours
If the distances from A to B, B to C and C to D are equal and the speed from A to B is 70 Km per hour, find the average speed from A to D

Answer 1

Answer:

3+5+6=14

Step-by-step explanation:

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Answer 2

Average speed = Total Distance/Total Time

Total time = 3+5+6 = 14hrs

Distance AB = speed×time = 70×3 = 210km

Since AB = BC = CD = 210km

Total distance = AB+BC+CD = 210+210+210 = 630km

Therefore,

average speed = 630/14 = 45 km/hr

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