The mass of each gas cylinder is 21 kg 270 g. What is total mass of 28 such cylinders?

In order to make a shirt, 2 m 25 cm cloth is needed. What length of cloth is required to make 18 such shirts?

A vessel has 4 litres 500 millilitres of orange juice. In how many glasses, each of 25 mL capacity, can it be filled?

To stitch a trouser, 1 m 30 cm cloth is needed. Out of 25 m cloth, how many trousers can be stitched and how much cloth will remain?