The width of the rectangular room is 5 meters and the length is 4 meters how much varnish is required

The width of the rectangular room is 5 meters and the length is 4 meters how much varnish is required to cover the floor in this room if 250 g of varnish are consumed per 1 meter.

The first step is to find the area of the room in square meters, for this we multiply the length by the width 5 * 4 = 20 (sq. M.) Area of the room.
The second step is to find the amount of varnish that will be required for painting the floor, for this we multiply the amount of varnish required by 1 sq. m. for the area of the room 250 * 20 = 5000 (gr) or if translated into kilograms 5000: 1000 = 5 kg. varnish will be required for the floor in the room.
Answer: 5000 grams of varnish is required for the floor in the room.