we can travel the.distance from kolapur to nashik at aspeed o f 77km.hour in 6hour . if it travel s in 5.30hour how much must be the speed km /hour should be increase?
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Answer:
1 hour = 77/6
1 hour = 12 . 8
hence , 12.8 km in 1 hour
so 12.8 × 5.30
67.84 is th speed
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