Buy HP Pavilion x360 Convertible PC and get N10,000 discount

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?

To get notifications when anyone posts a new answer to this question,
Follow New Answers

Post an Answer

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

JAMB 2020 CBT Software Agents - Click Here to Apply
JAMB 2020 CBT Mobile App - Download Now, It's Free!

Answers (3)

isaaq
4 months 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
mizta smart
2 months 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
4 months ago
Average speed= Total distance/Total time taken
= 9.25ms^-1
Ask Your Own Question

Quick Questions

See More Mathematics Questions
 
JAMB 2020 CBT Mobile App - Download Now, It's Free!
JAMB 2020 CBT Software - Download Now, It's Free!
JAMB 2020 CBT Software Agents - Click Here to Apply