Question

how many tiles whose length and breadth are 12 cm and 5 cm respectively will be needed to cover a rectangular region whose length and breadth are 144 cm and 1 m

Answer 1

no . of tiles = ar of region/ar of 1tile

=144*100/12*5

=240 tiles

Answer 2

Ans is 240
Sol :- area of rectangular region /area of tile
144*100/12*5=240
(Must remember 1m=100cm)
Hope it helps you