Frog in the well Puzzle

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Frog in the well Puzzle

Frog in the well Puzzle

A forg is at the bottom of a 78 meter well.
Each day he leaps 4 meters up the well
At night, while he is asleep,
he slips 2 meters backwards.

How many days does it take him to escape from the well?

Note : The frog escapes from the well once he climbs up a total of 78 meters.

Click here for Answer

The frog takes 38 days to escape from the well.
Explanation :
Considering 4m up and 2m down he climbs 2m per day and night.
So it takes 37 days for him to climb 74m up the well.
Hence on 38th day he climbs 4m and escapes the well as 74+4 = 78.

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