Answer:
The pool is 12500 cubic meters it will hold 3,302,125 gallons
Explanation:
The problem is a volume problem
L x W x H =Volume
50 m x 25 m x 10 m = Volume
12500 meters cubed or cubic meters.
If you need to convert it to gallons
1 cubic meter = 264.17 gallons
so 12500 meters cubed = 3,302,125 gallons of water