a bus running at a speed of80 km /h perform a journey in 6 h. how long would the same journey take if the speed were reduced by 20 km per hour
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Answer:
8 hrs
Step-by-step explanation:
initial speed = 80 km/hr
Time = 6 hr
distance = speed x time
= 80 x 6
= 480 km
speed reduced by 20 km/hr
now speed = 80 - 20
= 60 km/hr
distance = 480 km
time = distance / speed
= 480/60
= 8 hour
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