A lane 180, m long and 5 m wide is to be paved with bricks, of length 20 cm and breadth 15 cm.
find the cost of bricks that are required, at the rate of Rs.750 per thousand.
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Answer:
300 bricks are required and cost of bricks is Rs.225
Explanation:
lane is in a rectangular shape
pavement of bricks means area of lane , which is l*b
l= 180m
b = 5m
area= 180*5= 900m or 90000cm
Brick is also in rectangular shape
l = 20 cm
b = 15 cm
area = 20*15= 300 cm
Number of bricks required = 90000cm/300cm
= 300
Cost of thousand bricks = Rs.750
Cost of one brick = 750/1000
Cost of 300 bricks = 750/1000 *300= Rs.225
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