Answer:
Number of bricks is 5
Explanation:
We have volume of wall 60m^3. Then we are also given number of bricks size 20cm ×12cm× 5cm.
By multiplying this number we grt 1200cm^3. But answer is needed in meter so divide 1200 with 100 because to change cm into m we need to divide with hundred. Then we have 12m^3 as volume of bricks.
To get no. of bricks we have formula
N = volume of wall ÷ volume of bricks
N = 60 ÷ 12
N = 5
Thus the number of bricks is 5.
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