Frog on the wall
By ajay_rajeev
@ajay_rajeev (160)
India
November 18, 2006 5:58am CST
Frog on the wall
There is wall of 30 ft. height. A frog climbes 3 ft on the wall and slips 2 ft. in one hour. How much time it will take to reach to the top of the wall.
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