Question

the floor of a building is covered with 2760 tiles style is in the shape of a parallelogram of altitude and base for 15 centimetre find the cost of polishing the tiles @ rupees 20 per metre square​

Answer 1

Step-by-step explanation:

no.of tiles = 2760

dimensions of one tile :-

height = 15 cm

base=15cm

area of 1 tile = b×h

=15×15

=225cm²

area of 2760 tiles = 2760×225

=6,21,000 cm²

6,21,000 cm² in m² =

1cm²=0.0001m²

thus,6,21,000cm²=62.1m²

cost of polishing per tile = 20 rupees

cost of polishing 2760 tiles = 62.1×20

=1242 rupees