# Tiles

The rectangular floor of the 6 x 1.8 m dimensions is to be covered with 50 cm square tiles. How many tiles will be needed?

Result

n =  48

#### Solution:

$a = 6 \ m \ \\ b = 1.8 \ m \ \\ \ \\ x = 50 \ cm = 50 / 100 \ m = 0.5 \ m \ \\ \ \\ n_{ 1 } = a/x = 6/0.5 = 12 \ \\ n_{ 2 } = \lceil b/x \rceil = \lceil 1.8/0.5 \rceil = 4 \ \\ \ \\ n = n_{ 1 } \cdot \ n_{ 2 } = 12 \cdot \ 4 = 48$

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