Filling a volume of 8 cubic metres requires 64 125-litre bags.
1 50kg bag fill about 2 cubic f. so for 102cu.f. you'll need 51 bags
How many cubic meters in 1 cement bag of 50kgs
A cubic yard is 3x3x3= 27 cubic feet so you would need 27/.5 = 54 bags
I'm not sure you asked this correctly since a 24 cubic foot bag would be extremely large. You would only need 1 and 1/8 bags. If you meant 2.4 cubic feet bags, you would need 11.25 or 12 bags.
1 cubic yard = 27 cubic feet = 54 half-cubic-foot bags
An 80 pound bag of premix concrete will make .6 cubic feet of cured concrete. There are 27 cubic feet in a cubic meter, so it would take 45 80 pound bags to make one cubic meter.
Another incomplete question. It depends entirely on the density of either the contents of the bags, or of the bags the bags themselves if the bags are empty. If the bags contain water, then as there are 1000kg of water in 1 cubic metre there would be 20 X 50kg bags.
It would depend on how big the bag of cement is. 1 foot bags will be more in the cubic meter than 2 feet.
Forty five 80 pound bags of cement are needed to make one cubic yard of concrete.
80# bags are 0.6 cubic feet and it takes 41 to make a cubic yard. In that case, 60# bags must be 0.45 cubic feet and it would take 55 to make a cubic yard.
You will need a minimum of 0.665 cubic meters of cement for this walkway. (if 60 lbs per bag, it is 52.1 bags. If 80 lbs per bag, it is 39 bags).
You would need 31, 80 pound bags to cover 1 cubic yard at 4 inches deep. If you would like the depth to be 6 inches, 45 bags would be needed.