Question

A lane 180m long and 5m wide is to be paved with bricks of length 20 cm and breadth 15cm find the cost of the bricks that are requried at rate of 75 per thousand

Answer 1

so here
$180 00\times 500 = x \times 2 0 \times 15 \\ x = 18000 \times 500 \div 20 \times 15 \\ x = 300$
so cost one brick 1000÷75

300 bricks = 1000×300÷75

=₹4,000