To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present ?
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Let the capacity of 1 bucket = x.
Then, the capacity of tank = 25x.
New capacity of bucket = 2 x/5
Required number of buckets = 25x/(2x/5) = (25x)*5/2x = 125/2 = 62.5