Question

How many bricks will be to build a wall 4.5 metre long 22.5 cm wide and 3 metre height if the size of bricks is 22.5 cm × 10 cm ×7.5 CM

Answer 1

Answer:

number of brick =volume of wall/volume of brick

so here 4.5m=450cm

3m. =300cm

so 450×300×22.5/22.5×10×7.5

now by solving it u can find answer

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Answer 2

your answer

length=4.5m

=450cm

wide=22.5cm

hight=3m

=300cm

therefore

volume={450×22.5×300}cm cm cm

volume of a brick

=22.5cm×10cm×7.5cm

so ,total no of bricks = {450×22.5×300}÷{22.5×10×7.5}

=1800