To fill a tank, 25 buckets of water is required to fill the same tank if the capicity of the buckets is reduced to two fifth of its present?

1. 62.5
2. 50
3. 60
4. 63.5

Let the capacity of 1 bucket = x

Then the capacity of Tank= 25x

New capicity of bucket= 2/5x

Required number of buckets

=25x/(2x/5)

=25x*5/2x

=125/2

=62.5