how many hollow blocks of size 30cm × 15cm × 20cm are needed to construt a wall 60m in length,0.3 in breadth and 2m in height
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Volume of the wall = length × breadth × height
= 60m × 0.3m × 2m
= 36m^3.
volume of each box = length × breadth × height
= 0. 30cm × 0.15cm × 0. 20cm
=0.009m ^3.
number of box which are required to make the wall = Volume of the wall / volume of each box .
= 36m^3/ 0.009m^3 = 4000 boxes Ans
= 60m × 0.3m × 2m
= 36m^3.
volume of each box = length × breadth × height
= 0. 30cm × 0.15cm × 0. 20cm
=0.009m ^3.
number of box which are required to make the wall = Volume of the wall / volume of each box .
= 36m^3/ 0.009m^3 = 4000 boxes Ans
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4000 boxes ans........
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