Bunuel wrote:
How any cubic meters of water are in swimming pool K when it is full?
(1) At its longest part, K is 40 meters long; at its widest, it is 25 meters across; and at its deepest, it is 2 meters deep.
(2) When K is empty, it takes 1,000 containers, each containing 2 cubic meters of water, to fill K.
PS21272
statement 1: At its longest part, K is 40 meters long; at its widest, it is 25 meters across; and at its deepest, it is 2 meters deep.
it implies max{L= 40m, B= 25m, D= 2m} or MAX. VOL = 40*25*2= 2000 cub. m.
now, we don't know the actual dimensions of the pool , when it gets filled up to full with water, this is just pool's max volume.
the pool can be full at its max vol or slightly below or below its max vol.
NOT Sufficient
Statement 2: When K is empty, it takes 1,000 containers, each containing 2 cubic meters of water, to fill K.
it implies to full the empty pool with water, it takes 1000*2 cub mtr of water in containers= 2000 cub mtr
this is SUFFICIENT
Therefore, B