I would like to make the flower borders in my garden narrower than they are now. The lady who lives opposite me has employed a landscape gardener to dig up her garden, and put in a large patio. She very kindly agreed to let me have the top soil and turf from her garden. Are you with me so far?
The gardener's wheelbarrow is very large, with a bucket say about 30" long, 15" deep and 20" wide. He tipped about twelve barrows' full of soil/turf on the end of my garden. The turf and topsoil are needed in the back garden, and there are twelve steps all approximately 8" high.
Using two fairly equally loaded buckets, how much surf/topsoil in total did I carry up the steps?

Unfortunately I did not count the number of times I walked up the steps carrying topsoil.