A super fast bus of ksrtc starting from trivandrum and reaches attibgal in 45 minutes with an average speed of 40 km/hr .If the speed is increased by 10 km/hr how much time it will take to cover the distance?
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Explanation:
d=s*t
s=40 km/hr=40/60km/min
t=45min
d=(4/6)*45=30km
now increased speed= 50 km/hr=50/60 km/min
d=30 km
t=d/s
= 36 min
hope it helps you
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