How many tiles whose length and breadth are 12 cm and 5 cm respectively will be needed to fit in a r......

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 respectively 144 cm and 100 cm:

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.

By: MIRZA SADDAM HUSSAIN