2,272.6 cubic feet.
As the Olympic size swimming pool is nearly 88,00 cubic feet. It would certainly take 120 billion small marbles to fill it
Your answer can be found here: What_are_the_measurements_and_dimensions_of_an_Olympic_pool
That is 1,800 cubic ft.
60x30x8=14400 cubic feet
depends on how big the swimming pool is An Olympic swimming pool is a standard size so you must take the legnth times the width times the depth and convert the cubic yards to gallons.
One length of an Olympic size swimming pool is 50mtrs or 164.041 feet, so a lap (2 lengths) would be 328.082 feet
Not possible to say without any information about the depth.
2727 cubic feet
There are usually 50 meters in a Olympic sized swimming pool.
27 cubic feet in a cubic yard.