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
100 cm and 144 CM
70 cm and 36 CM
Answers
Answer:
Thus, 42 tiles are required
Step-by-step explanation:
(a) Area of region = 100 cm x 144 cm = 14400 sq.cm
Area of one tile = 5 cm x 12 cm = 60 sq.cm
Number of tiles =
Area of region
Area of one tile
=14400/60
= 240
Thus, 240 tiles are required.
(b) Area of region = 70 cm x 36 cm = 2520 sq.cm
Area of one tile = 5 cm x 12 cm = 60 sq.cm
Number of tiles =
Area of region
Area of one tile
=2520/60
= 42
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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.