Asked by johanah
There's a frog at the bottom of a 30-foot well. The frog will rise 3 feet in the morning & would slid down 2 feet in the evening. If the frog will start on February 1, what date will it reach the top?
Answers
Answered by
Matt
If it goes up 3 feet then slides down 2 feet, then it goes up 1 foot a day, so it would take 30 days to get up to the top
Answered by
Reiny
morning of day 1 -- 3 ft
evening of day 1 -- 1 ft ,(3-2)
morning of day 2 -- 4 ft
evening of day 2 -- 2
...
morning of day 27 -- 29 ft
evening of day 27 -- 27 ft
morning of day 28 -- 30 ft
He has reached the top, no sliding back
He will reach the top on Feb 28th
evening of day 1 -- 1 ft ,(3-2)
morning of day 2 -- 4 ft
evening of day 2 -- 2
...
morning of day 27 -- 29 ft
evening of day 27 -- 27 ft
morning of day 28 -- 30 ft
He has reached the top, no sliding back
He will reach the top on Feb 28th
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