Need math help with: 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 ?

Eight people are planning to share equally the cost of a rental car. Ifone person withdraws from the arrangement and the others share equallythe entire cost of the car, then the share of each of the remainingpersons increased byA fires 5 shots to B's 3 but A kills only once in 3 shots while B killsonce in 2 shots. When B has missed 27 times, A has killedTo fill a tank, 25 buckets of water is required. How many buckets ofwater will be required to fill the same tank if the capacity of thebucket is reduced to two-fifth of its present