Question

A room measures 12 m x 9 m. The floor of the room is to be covered by marble tiles measuring 45 cm x 30 cm. Find the cost of covering the floor with tiles at the rate of Rs 5.25 per tile.

Answer 1

800 marbles are required

Answer 2

$\huge\mathfrak\red{☟ \: \: \: answer \: \: \: \: ✎}$

$Number \: of \: tiles = \frac{Area \: of \: Floor}{Area \: of \: one \: tile}$

$= \frac{12 \times 9}{} \\ \frac{45}{100} \times \frac{3}{10}$

$= \frac{12 \times 9 \times 100 \times 10}{45 \times 3}$

$= 800$

$:45 \: cm = \frac{45}{100} \: m$

$:30 \: cm \frac{30}{100} \: m$

$\\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸}$