Mensuration Practice Test 6

Question : 34 of 40

Marks: +1, -0

The floor of a square room of side 10 m is to be completely covered with square tiles, each having length of 50 cm. The smallest number of tiles needed is.

Validate

Solution:

Side of square tiles = 50 cm
Side of square floor = 10 m = 1,000 cm.
=

{\area \of \square \floor}/{\Area \of \square \tiles}

= number of tiles
=

{1000×1000}/{50×50}

= 20 × 20 = 400 tiles

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