Question

9. A marble tile measures 10 cm x 12 cm. How many tiles will be required to cover a wall
of size 3 mx 4 m? Also find the total cost of the tiles at the rate of Rs 2 per tile​

Answer 1

Step-by-step explanation:

Given area of the wall = 3 m x 4 m = 12 m2 Also given that area of one marble tile = 10 cm x 12 cm = 120 cm2 = 0.012 m2 [Since 1 m2 = 10000 c m2] Number of tiles required to cover the wall = Area of wall/ Area of one marble tile = 12/0.012 = 1000 tiles Cost of one tile = Rs. 2 Total cost = Number of tiles x Cost of one tile = Rs. (1000 x 2) = Rs. 2000Read more on Sarthaks.com - https://www.sarthaks.com/690267/a-marble-tile-measures-10-cm-12-cm-how-many-tiles-will-be-required-to-cover-a-wall-of-size-3-m-x-4