6. A boy covers 20 km in 2hours, 30 km in next 3 hours and last 40 km in 4 hours. Calculate the average speed of the boy in km/h.
write the process also then I will mark you as brainliest
Answers
Answered by
1
Answer:
Total distance = 20+30+40 = 90 km
Total time = 2+3+4= 9 hours
Average speed = Total distance / Total time
= 90/9
= 10 km/hr
Answered by
4
Answer:
10 km/h
Explanation:
Total distance covered= (20+30+40) km = 90 km
Total time taken = (2+3+4) hours = 9 hours
So, Average speed of the boy = Total distance travelled/ Total time taken = (90/9) km/h = 10 km/h
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