A car moves 20 km with a speed of 30 km/h and next 20 km with a speed of 60 km/h. What is the total time taken in this whole journey?
Answers
Answered by
9
We know that Speed = Distance/ Time
Hence 30 = 20/T1 and 60 = 20/T2
T1 = 20/30 and T2=20/60
T1 = 2/3 and T2 = 1/3
Total Time = T1 + T2
2/3 + 1/3 = 3/3
=1
Ans.- Total time take in this whole journey is 1 hour.
Hence 30 = 20/T1 and 60 = 20/T2
T1 = 20/30 and T2=20/60
T1 = 2/3 and T2 = 1/3
Total Time = T1 + T2
2/3 + 1/3 = 3/3
=1
Ans.- Total time take in this whole journey is 1 hour.
Answered by
10
HI !
Distance = 20 km
Speed = 30 km/hr
Time = distance/speed = 20/30 hours = 2/3hrs
Distance = 20 km
Speed = 60km/hr
Time = 20/60 hrs = 1/3 hr
Total time = 1+3 + 2/3 = 3/3 = 1 hour
Distance = 20 km
Speed = 30 km/hr
Time = distance/speed = 20/30 hours = 2/3hrs
Distance = 20 km
Speed = 60km/hr
Time = 20/60 hrs = 1/3 hr
Total time = 1+3 + 2/3 = 3/3 = 1 hour
Similar questions