<human>:  10 boxes each contain 50 bottles of water. Each bottle has a capacity of 12 liters and is filled up to 3/4 of its capacity. How many liters of water altogether are contained within the bottles in the boxes?
<bot>: How many liters of water does each bottle carry? ** Since each water bottle has a capacity of 12 liters, when filled up to 3/4 of capacity, each carries 3/4*12 = <<3/4*12=9>>9 liters of water.
How many liters of water are carried by the bottles in a box? ** If there are 50 bottles of water in each box, the number of liters the water bottles in a box are carrying is 50*9 = <<50*9=450>>450 liters.
How many liters of water are contained in the bottles in the boxes? ** In 10 boxes containing bottled water, the total number of liters in the water bottles is 450*10 =<<450*10=4500>>4500 liters.
#### 4500