Question

how many tiles ,each 12 cm by 6 cm are needed for a floor of a room 162 cm long 144cm wide

Answer 1

length of tile = 12 cm
breadth of tile= 6 cm
it's area = l×b => 12×6 => 72 cm²

length of floor = 162 cm
breadth if floor = 144cm
its area = l×b => 162×144 => 23328cm²

therefore ,
no of tiles needed = area of floor / area of tile
=> 23328 cm²/ 72cm²
=> 324 tiles
hope this helps

Answer 2

Answer:

324

Step-by-step explanation:

length of tile is 12cm

breadth of tile is 6cm

area of tile =12*6=72

length of room is 162 cm

breadth of room is 144 CM

area of room is 162*144=23328

number of tiles is 23328/72=324 tiles.

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