A ship can cover a certain distance in 10hours of speed of 16nautical miles per hour By how should its speed be increased so that only 8hours to cover the same dictance
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The distance a ship covers in 10 hours=10×16=160
Speed to be increased so that it only takes 8 hours to reach 160 kms=160÷8=20
Therefore the ship moves at 20 nautical miles per hour to finish 160 miles in 8 hours
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