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:

100 cm and 144 cm

Answer 1

Area of rectangle = 100 × 144

= 14400 cm

Area of one tile = 5 × 12

= 60 cm²

Number of tiles = `"(Area of rectangle)"/"(Area of one tile)"`

= `14400/60`

= 240

Hence, 240 tiles are needed.