A car take 6 hours to reach a particular place by travelling at a speed of 50km/hr. if the speed is increased to 60km/hr how long will it take to reach the place ? (use inverse proportions taking x as speed and y as time)
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Answer:
Time : Distance :: Time : Distance
6 : 50 km :: x : 75
∴ By inverse proportion
6 × 50 = x × 75
⇒ x = (50 × 6)/75
= 4 hours
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