how many tiles whose length and breadth are 12 cm. and 5 cm respectively will be mended to fit in a rectangular region whose length and breadth are respectively. a 100 cm and 144 cm. 70 cm and 36 cm
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Summary: It is given that the 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 given. We found that 240 tiles are required in the 1st case and 42 tiles are required in the 2nd case.
Answered by
1
Answer:
(a) Area of rectangle = 100 × 144
= 14400 cm
Area of one tile = 5 × 12
= 60sq.cm
Number of tiles = (Area of rectangle) / (Area of one tile)
= 14400 / 60
= 240sq.cm
Hence, 240 tiles are needed
(b) Area of rectangle = 70 × 36
= 2520sq.cm
Area of one tile = 5 × 12
= 60sq.cm
Number of tiles = (Area of rectangle) / (Area of one tile)
= 2520 / 60
= 42
Hence, 42 tiles are needed.
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