Question

Find thr number of bricks each measuring 20cm*15cm*6cm requerd to construct a wall 5m long 4.5 m hight and 0.6 m thick

Answer 1

Step-by-step explanation:

Dimension of a wall = 500cm ×450cm ×60cm

Dimension of a brick = 20cm ×15cm ×6cm

No. of bricks =(500×450×60)÷(20×15×6)

=7500

Answer 2

Dimensions of the bricks=(20×15×6) cm

=1800 cm

Dimensions of the wall=(500×450×60) cm

=13,500,000 cm

Clearly, no. of bricks =13, 500,000÷1800

=7,500

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