EDE
80. A car runs from city P to city Q at an
average speed of 50 km/hr and reaches Q
in 44 minutes. If speed is increased by 5
km/hr, how much time would be saved?
A. 10 minutes
B. 8 minutes
C. 6 minutes
D. 4 minutes
Answers
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0
Answer:
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Answered by
0
Answer: D 4vminutes
Step-by-step explanation:
first covert 44 minutes into hours
hours=44/60
Total distance = 50*44/60
Total distance=110/3 km
now speed is increased by 5 km/hr
so the speed becomes 55 km/hr
now time taken would be = Total dist./ speed
=110/3(total dis.)/55(speed)
=2/3hrs
Convert this into minutes we get 2/3*60= 40 minutes
Now the car completes the distance in 40 minutes rather than 44 minutes.
Time saved = 4 minutes
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