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Bikram Rawani

· started a discussion

· 1 Months ago

doubt (Question:163011.0)

how did you take lenght of thile 12cm??????????????????????????////

Question:

A floor of 19 m 28 cm in length and 12 m 42 cm in breadth can be covered by how many square tiles each of whose length is 12 cm?

Options:
A) 16,629
B) 14,243
C) 15,215
D) 13,429
Solution:

Ans: (a) Length of floor = 19m 28cm = 1928 cm

Breadth of floor = 12m 42cm = 1242 cm

Area of floor = l x b = 1928 x 1242 cm2

Length of tile = 12 cm

Area of tile = 144 cm2

Required number of square tiles = \(\cfrac{[1928 \times 1242]}{144}\)

= 16629

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