Question

if length of wall is 156cm and breadth is 120 cm . find the number of tiles required for wall if length of tile is 12cm and breadth is 5 cm​

Answer 1

Step-by-step explanation:

Solution:

(a) Area of region = 100 cm x 144 cm = 14400 cm.sq

Area of one tile = 5 cm x 12 cm = 60 cm.sq

Number of tiles = \frac{Area\ of\ region}{Area\ of\ one\ tile}

Area of one tile

Area of region

= 240

Thus, 240 tiles are required.

(b) Area of region = 70 cm x 36 cm = 2520 cm.sq

Area of one tile = 5 cm x 12 cm = 60 cm.sq

Number of tiles = \frac{Area\ of\ region}{Area\ of\ one\ tile}

Area of one tile

Area of region

= 42

Thus, 42 tiles are required.

Answer 2

Answer:

Step-by-step explanation:

Given:-

• length of wall =156cm

• breadth of wall= 120cm
• Length of tile =12cm
• breadth of tile = 5cm

Area of Wall = Length of the wall x breadth of the wall

156 x 120 =  18720 sq cm

Area of tile = length of tile x Breadth of tile

12x5 = 60 Sq cm

Now required tile for wash out the wall = 18720/60

$\frac{18720}{60} =\frac{1872}{6} \\312 tiles required$