Question

a tile is a square of side 20cm how many such tiles would be required to cover the floor of a square bathroom of side 3m​

Answer 1

❏ Question:-

a tile is a square of side 20cm how many such tiles would be required to cover the floor of a square bathroom of side 3m

❏ Solution:-

✏ Given:-

• Side of square tile = 20 cm.
• Side of floor = 3 m. =300 cm.

✏ To Find:-

• No. of tiles required = ?

✏ Explanation :-

Area of each tile = 20² cm² = 400 cm².

and

Area of the floor = 300² cm² = 90000 cm²

Therefore , No. of tiles = N (let)

$\sf\implies N=\dfrac{900\cancel{00}}{4\cancel{00}}\:pcs$

$\sf\implies N=\dfrac{\cancel{900}}{\cancel{4}}\:pcs$

$\sf\implies\boxed{ \large{\red{N=225\:pcs}}}$

∴ Number of tiles required is = 225 pcs.

Answer 2

side of square tile =S=20cm

Area=S2

20×20

400cm

side of the floor of bathroom

S=3m

3×100

300cm

Area =300×300

90000 cm

No tiles =90000/499

=225

this is a answer

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