How many square tiles of side 12 cm are required to fit in a rectangular region of length
and 250 cm and 144 cm respectively?
Answers
Answer:
42 tiles
F.llow = F.llow
Step-by-step explanation:
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
(b) 70 cm and 36 cm
Answer:
(a) Area of region = 100 cm * 144 cm = 14400 cm2
Area of one tile = 5 cm * 12 cm = 60 cm2
Number of tiles = Area of region/Area of one tile
= 14400/60
= 240
Thus, 240 tiles are required.
(b) Area of region = 70 cm * 36 cm = 2520 cm2
Area of one tile = 5 cm * 12 cm = 60 cm2
Number of tiles = Area of region/Area of one tile
= 2520/60
= 42
Thus, 42 tiles are required.
Area of one tile = 5 cm x 12 cm = 60 cm.sq
Number of tiles = \frac{Area\ of\ region}{Area\ of\ one\ tile}
Area of one tile
Area of region
= 240
Thus, 240 tiles are required.
(b) Area of region = 70 cm x 36 cm = 2520 cm.sq
Area of one tile = 5 cm x 12 cm = 60 cm.sq
Number of tiles = \frac{Area\ of\ region}{Area\ of\ one\ tile}
Area of one tile
Area of region
= 42
Thus, 42 tiles are required.
Answer:
250
Step-by-step explanation:
(144×250)÷(12×12)