Chapter Speed, Time and Distance
Q1. On a 450 km trip to Manali, Tarun's driving speed was 40 km/h for half of the trip. If he completes the trip in 12 hours, find his driving speed for the rest of the journey.?
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9
Answer:
35.29
Step-by-step explanation:
Distance travelled by tarun for 40 km/h = 450/2 = 225
time taken by tarun to travel that
time = d/s
t = 225/40 = 45/8 hours
45/8 hours
time taken to travel next half = total time - timr
= 12-45/8
=51/8
speed = d/t
225/51/8
= 225*8/51
=1800/51
=600/17
=35.29
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