Question

how many tlies are needed whose length and breadth are 13 cm and 7 cm respectively are needed to cover a rectangular region whose length and breadth are 520 and 140 CM? 800 tiles?

Answer 1

area of rectangle = lb =520×140=72800
area of 1 tile = lb = 13×7 = 91
Tiles needed = 72800/91 =6992
6992 tiles are needed.

Answer 2

Answer:

800 tiles will be required  to cover the rectangular region.

Step-by-step explanation:

Area of the single tile = l x b

                                      = 13 x 7

                                      = 91 sq.cm

Area of the Rectangular region = l x b

                                                       = 520 x 140

                                                       = 72800 sq. cm

No. of Tiles required to cover

the rectangular region = Area of the rectangular region / Area of the

                                                                                   Single Tile

                                         = 72800/91

                                         = 800 tiles

Therefore, the no. of tiles required to cover the rectangular region is 800 tiles.