Anna has a rectangular room which is $17 m 64 c m$ long and $16 m 20 c m$ broad. It has to be tiled with colourful square tiles of $36 c m$ in size. How many tiles Anna will need?

2000

tiles

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1360

tiles

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2220

tiles

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2205

tiles

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Solution

The correct option is C $2205$ tiles
Length of rectangle room $l = 17 m 64 c m$
$= 1764 c m$
Breadth of rectangle room $b = 16 m 20 c m$
$= 1620 c m$
Area of rectangle room $= l \times b$
$= 1764 \times 1620 = 2857680$ sqcm
Area of square tiles $= s^{2}$
$= 36 \times 36 = 1296$ sqcm
Number of tiles required $= \frac{2857680}{1296} = 2205$
hence, option $D$ is correct.

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Anna has a rectangular room which is 17 m 64 cm long and 16 m 20 cm broad. It has to be tiled with colourful square tiles of 36 cm in size. How many tiles Anna will need?

The correct option is C 2205 tilesLength of rectangle room l=17m 64cm =1764 cmBreadth of rectangle room b=16m 20cm =1620 cmArea of rectangle room =l×b =1764×1620=2857680 sqcmArea of square tiles =s2 =36×36=1296 sqcmNumber of tiles required =28576801296=2205hence, option D is correct.

Anna has a rectangular room which is $17 m 64 c m$ long and $16 m 20 c m$ broad. It has to be tiled with colourful square tiles of $36 c m$ in size. How many tiles Anna will need?