Question

Square tiles of side 20 cm are to be laid on the floor of a room 10 m by 4.5 m. How many tiles will be needed ? Find the cost of fencing at ₹22.50per tile.

Answer 1

2.0 is the answer for this

Answer 2

here is ur answer:


For square tile -

side = 20 cm = 0.2 m

For room -

l = 10m

b = 4.5 m




$no. of tiles = \frac{area \: of \: room}{area \: of \: tile} \\ \\ no. of tiles = \frac{l \times b}{ {side}^{2} } \\ \\ no. of tiles = \frac{10 \times 4.5}{ {(0.2)}^{2} } \\ \\ no. of tiles = \frac{45}{0.04} \\ \\ no. of tiles = 1125$


cost of fencing per tile = Rs. 22.50

cost of fencing of 1125 tiles = 22.50 × 1125

cost of fencing of 1125 tiles = Rs. 25,321.5





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