Question

Find the cost of flooring room 7.5 by 6 m with square tiles of side 30 CM at the rate of rupees 6 per tile.

Answer 1

first of all we have to calculate the area of floor then
the area of rectangle for floor = length × breadth
=7.5×6
=45m2
after it we have to find the area of tile but we have to convert the 30 cm into 0.3 m.
(when we have to convert centimetre into metre then we have to divide the centimetre value by 100)
area of square tile = side square
= 0.3×0.3
= 0.09 M2
number of tiles = area of floor ÷ area of square tile
=45÷0.09
=500
the number of tile we got is 500
we have to multiply 500 × 6 because one tile price is 6 rupees
=3000rupees
we have 3000 rupees for it