The ship was sailing. The tide was rising at the rate of 16 inches per hour. Four rungs were already Below the water. Each rung was 1/1/2 inches thick and there was a gap of eight inches between rungs. After five and one half hours later how many rungs of the ladder would have been submerged? Answer: 4 rungs only. Boat rises with the tide. 
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submerged four rungs eight inches rising tide sailing 16 inches

Ramarao Rama Rao

14/01/2013 10:56 AM