Final answer:
To calculate the cost of laying square marbles in a room, first find the total area of the room by multiplying its length and width. Then, divide the total area by the area of each marble to find the number of marbles needed. Finally, multiply the number of marbles by the cost per marble to calculate the total cost.
Step-by-step explanation:
To calculate the cost of laying the square marbles, we first need to find the total area of the room. The area of a rectangle is calculated by multiplying the length and width. In this case, the length is 5.6m and the width is 3.6m, so the area is:
Area = Length × Width
Area = 5.6m × 3.6m
Area = 20.16 square meters
Next, we need to calculate how many square marbles will cover the entire area of the room. The size of each marble is 20cm × 10cm, which means its area is 0.2m × 0.1m = 0.02 square meters. To cover the entire room, we divide the total area of the room by the area of each marble:
Number of marbles = Room area / Marble area
Number of marbles = 20.16 square meters / 0.02 square meters
Number of marbles = 1008
Lastly, we can calculate the cost of laying the marbles by multiplying the number of marbles by the cost per marble. Since the rate is not provided in the question, we cannot calculate the exact cost without that information.