Question

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

Answer 1

Answer:

Length of the rectangular region = 520cm.

Breadth of the rectangular region = 140cm.

Now

Length and breadth of each tile =13cm&7cm.

Therefore number of tiles required =

Area of the region / area of each tile.

=520x140/13x7=40x20=800.

Therefore total tiles required =800

hope it helps you

Answer 2

Answer:

800

Step-by-step explanation:

length of tiles=13cm.

breadth of tiles =7cm

area of tiles =13*7=91cm2

length of rectangular region =520cm

breadth of rectangular reagion=140 CM

area of rectangular region =(140*520)cm=72800cm2

so;

tiles required =72800/91=800