car travell 30 min with speed of 40 km/hr 45 min with 60km/hr and 2 hr with 70 km /hr find its avg speed
Answers
Answered by
0
first we have to convert time into hours
30 min_ 0.5
45 min_0.75
average speed= total distance / total time
40+20+140/0.5+0.75+2
200/3.25
61.53 (approx)
30 min_ 0.5
45 min_0.75
average speed= total distance / total time
40+20+140/0.5+0.75+2
200/3.25
61.53 (approx)
Answered by
0
distance travelled by car = 60km
time taken by car = 45min. = 45/60 hr = 3/4 hr.
speed = distance/time
= 60/(3/4)
speed = 60*4/3 = 80km/hr.
Similar questions