The width of the room is rectangular, 5 m, and the length is 4 m. How much varnish

The width of the room is rectangular, 5 m, and the length is 4 m. How much varnish is required to cover the floor in this room, if 250 g of varnish is consumed per 1 m2 .

1. From the condition of the problem it follows that the room has a rectangular shape, which means the floor is also rectangular with a width of 5 m and a length of 4 m.

2. The area of a rectangular floor is equal to the product of length and width, that is, 5 * 4 = 20 m2.

3. If 250 g of varnish is consumed for 1 m2 of floor, then for the entire floor you need 250 * 20 = 5000 g = 5 kg.