How many tiles with dimensions14 cm and 9 cm will be needed to fit a r

1.	How many tiles with dimensions14 cm and 9 cm will be needed to fit a region whoselength and broadth are 168 cm and 72m
Answer» (a) Total area of the region = 100 × 144 = 14400 cm2 Area of one tile = 12 × 5 = 60 cm2 Number of tiles required =14400/60=240 Therefore, 240 tiles are required. (b) Total area of the region = 70 × 36 = 2520 cm2 Area of one tile = 60 cm2 Number of tiles required =2520/60=42 Therefore, 42 tiles are required.

How many tiles with dimensions14 cm and 9 cm will be needed to fit a region whoselength and broadth are 168 cm and 72m

Answer»

(a) Total area of the region = 100 × 144 = 14400 cm2

Area of one tile = 12 × 5 = 60 cm2

Number of tiles required =14400/60=240

Therefore, 240 tiles are required.

(b) Total area of the region = 70 × 36 = 2520 cm2

Area of one tile = 60 cm2

Number of tiles required =2520/60=42

Therefore, 42 tiles are required.