Question

The length and breadth of a rectangular room is 4 metre and 3 respectively if the classroom is to be tied with square tiles whose side is 40 cm how many square tiles will be required?

Answer 1

Answer:

75 tiles are required

Step-by-step explanation:

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Answer 2

Answer:

75 square tiles will be required.

Step-by-step explanation:

l = 4m = 400cm ; b = 3m = 300cm

therefore, area of the class room = lb = 400*300 sq.cm = 120000 sq.cm

now, area square tile = a^2 = 40*40 =1600 sq.cm

and , no. of tiles = ar(class room)/ar(square tiles) = 120000/1600 = 75.