A bus travelling the first-one-third distance at
a speed of 10 km/h, the next one-fourth at 20
km/h and the remaining at 40 km/h. The average
speed of the bus is about
(b) 9 km/h
(d) 18 km/h
(a) 8 km/h
(C) 16 km/h
Answers
Answered by
3
Answer:
the average speed of bus18 kilometre per hour
option d is correct
Explanation:
explain explain check and attachment
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Answered by
1
Answer:
(d) 18 km/h would be answer.
Explanation:
av speed= total distance/total time
= D/(D/3*10 + D/4*20 +5D/12*40)
=17.8 which is closer to 18km/h.
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