A paper cup is in the shape of a cone with a base diameter of 6 cm and a height of 8 cm the cups are being filled from water cooler that has a 18 wheeler jug how many paper cups of water in this jug. 1 L equals 1000 cm

as with all cones, V = 1/3 Bh

so our cone has volume
v = 1/3 * 9π * 8 = 24π
now, I have no idea what a "18 wheeler" jug is, but if its volume is V cm^3, then it will hold V/(24π) cupfuls.