Question

A rectanglular floor with length and breadth 20m and 15m respectively

needs to be covered with square tiles of length 20cm. How many such tiles

are required to cover the rectangular floor​

Answer 1

Answer:

7500 tiles

Step-by-step explanation:

dimension of the rectangular floor = 20m  X 15m

                                                          = 20*100cm X 15*100cm

                                                          = 2000cm X 1500cm

=> Area of the floor = 1500*2000 cm²

                                = 3000000 cm²

dimension of the square tile = 20cm X 20cm

                                               = 400cm²

=> no. of tiles to cover the floor = 3000000 / 400  

                                                    = 7500 tiles