1.

The length and breadth of a hall are 21-m and 11-m, respectively. If one wants to pave the floor of th4with square tiles of side length - m, how many tiles would be required?

Answer»

21 3/4=84+3/4=87/4; 11 1/4=45/4; 87+45/4=132/4=66/2

33 is the correct answer



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