Question

how many bricks of size 22cm*10cm*7cm are required to construct wall of 33 cm long 3.5 high and 40 cn thick if cement and sand used in the construction occupy 1/10 part of the wall​

Answer 1

Step 1: Calculating Volume of the wall( length * breadth * height) : 4620cm^3

Step 2: Calculating Volume of each brick(length * breadth * height) : 1540cm^3

Step 3: Dividing 4620/1540 = 3 bricks

Step 4: 1/10* 3 : 0.3 bricks occupied as cement and sand

Step 4: remaining bricks: 3.0 - 0.3 : 2.7

Ans: 2.7 bricks