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Speed=3km/h, distance=12km what change should be done in the speed to take(1)an hour less and (2)an hour more to cover the distance |
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Answer» Inverse variation Speed. TIME 3kmph. 4(it TAKES 4 hrs to cover 12 km in that speed X. 3 3x=12 X=4kmph After doing same for an HOUR more and TAKING time as 5hrs we get 5x=12 x=12/5=2.4kmph |
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