Question

A hall measures 16m by 10m.How many square tiles of side 20cm will be required to pave its floor

Answer 1

Answer:

400 tiles

Step-by-step explanation:

First we calculate area of the hall,

=length x breadth = 16 x 10 =160 m sq.

Then we find the area of each tile,

=side x side = 20 x 20= 400 cm sq.

Now we make the area in terms of cm

160 x 100 (because 1 m=100 cm) =160000

Now to find the number of tiles we divide the area of the hall by area od each square tile.

=160000/400 = 400

There 400 tiles will be needed.

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