Question

A builder needs to cover 10 square yards of floor with tile. Red tile costs $60 per square yard, and white tile costs $40 per square yard. If the builder
spends exactly $480 on tile, how much of the floor will be covered with red tile?
3 squarna yards
3.5 square yards
4 square yards
5.5 square yards
6 square yards​

Answer 1

Answer:

Answer is 855.

Answer 2

Given,

Total floor area = 10 square yards

Cost of red tiles = $60 per square yards

Cost of white tiles = $40 per square yards

Total expenditure = $480

To find,

The area of floor which is covered with red tiles.

Solution,

We can simply solve this mathematical problem by using the following mathematical process.

Let, the red tile covered floor's area = x square yards

White tile covered floor's area = (10-x) square yards

According to the data mentioned in the question,

(60× x) + {40 × (10-x)} = 480

60x + 400-40x = 480

20x = 480-400

20x = 80

x = 4

The area of floor which is covered with red tiles = 4 square yards

Hence, the red tiles is used to cover 4 square yards of floor.