how many tiles whose length and breadth are 12cm and 5cm respectively will be needed to fit in rectungalur region whose length and breadth are respectively
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Correct question :
How many tiles whose length and breadth are 12 cm and 5 cm respectively will be needed to fit in a rectangular region whose length and breadth are respectively?
(a) 100 cm and 144 cm
(a) 100 cm and 144 cm(b) 70 cm and 36 cm
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Answer:
Given that:-
- Length of tiles = 12cm
- Breadth of tiles = 5cm.
- Length and breadth of the rectangular region
To find:-
- A number of tiles to be fitted in the rectangular region.
(a) Area of rectangle = 100 × 144
= 14400 cm
Area of one tile = 5 × 12
= 60 cm^2
Number of tiles = (Area of a rectangle) / (Area of one tile)
= 14400 / 60
= 240
Hence, 240 tiles are needed
(b) Area of rectangle = 70 × 36
= 2520 cm^2
Area of one tile = 5 × 12
= 60 cm^2
Number of tiles = (Area of rectangle) / (Area of one tile)
= 2520 / 60
= 42
Hence, 42 tiles are needed.
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