Answers

2016-02-23T00:23:20+05:30
20 days 
jumps 5m
falls 4m
therefore,distance covered in 1 day= 5-4
=1m
let no of days to cover 20m be x
therefore days taken to cover 20m = 20 *1
=20 days
it will take 20 days for frog
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2016-02-23T12:53:42+05:30
If we apply logic answer is 16days.
the frog jump every day 5-4=1m
so the distance covered
first day=1m
second day=2m
third day =3m
and so on.
but on 15th day =15m
and on 16th day=20m
as every day he jump 5m and slip 4m due to wall
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