50%. What is the new average speed
1. The average speed of a car is 75 kmh
The driver first decreases its average
speed by 40% and then increases it by
now?
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Answer:
67.5 km/h
Step-by-step explanation:
Required average speed = 75 x {(100 - 40)/100} x {(100 + 50)/100}
= 75 x 3/5 x 3/2
= 67.5 km/h
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