September Admission 2019/2020 into Accra Institute of Techonology, Ghana - Undergraduate Programs 2

On a journey a motorist travels the first 40km in 1-2 hour, the next 34km...

On a journey a motorist travels the first
40km in 1-2 hour, the next 34km in 25 mins
and the last 7km in 5 mins. What is the
average speed for the whole journey?

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Answers (2)

isaaq
1 month ago
Solution
avg speed = total distance/total time
= (40+34+7)km/(30+25+5)min = 81km/60min = 81 km/hr
Or
Total time = 60 minutes
Total distance = 81 km

81/60 = 1.35 km per minute = 81 km per hour
Abraham adedeji
1 month ago
Average speed= Total distance/Total time taken
= 9.25ms^-1
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