Question

10. A wall 15 m long, 30 cm wide and 4 m high is made of bricks, each mensuring 22 cm x 12,5 em
1
7.5 cm. If of the total volume of the wall consists of mortar, how many bricks are there in
12
the wall?​

Answer 1

Answer:

volume of wall=1500*30*400=18000000cm^3

volume of each brick=22*12.5*7.5=1100*7.5/4=8250/4=2062.5cm^3

no. of bricks = 18000000/2062.5=8727.27(approx)