Question

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​

Answer 1

Answer:

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Answer 2

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