As Kamran has bought tiles for $60 while he needs only $50 tiles, therefore, he has bought enough tiles to cover the entire wall.
<h3>What is a Ratio?</h3>
A ratio shows us the number of times a number contains another number.
Given the length of the wall on the diagram is 8 cm by 4 cm. And it is given that 4 cm is equal to 1 meters. Therefore, the original dimensions of the wall are,
8 cm → 8×(1/4) → 2 meters = 200 cms.
4 cm → 4×(1/4) → 1 meters = 100 cms
Now, the area of the wall in reality is 200 cm by 100 cm. Therefore, the total area of the wall is,
Total area = 200 cm × 100 cm = 20,000 cm²
The area of a single square tile of side length 10 cm is,
Area of a single tile = 10cm × 10cm = 100 cm²
The number of tiles that will be needed to cove the entire wall will be,
Number of tiles needed = 20000 / 100 = 200
Since the cost of a single tile is $0.25, therefore, the cost of 200 tiles will be,
Cost of 200 tiles = $0.25× 200 = $50
As Kamran has bought tiles for $60 while he needs only $50 tiles, therefore, he has bought enough tiles to cover the entire wall.
Learn more about Ratios:
brainly.com/question/1504221
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