A pit of length 180m, width 70m and depth 40m is dug around a field. Find the total cost of laying the concrete inside the pit, if it costs 5 rupees per cubic metre.
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Answer:
The total cost of laying the concrete is Rs. 25,20,000
Step-by-step explanation:
Given:
Length of pit (l)= 180 m.
Width of pit (b )= 70 m.
Depth of pit ( h )= 40 m.
Volume of pit = volume of cuboid = lbh
= 180 × 70 × 40 = 5,04,000 cu .m.
Cost of laying concrete inside the pit = RS.5 per cu. m.
Total cost of laying the concrete = Cost per cu. m. × total volume
= 5 × 5,04,000 = Rs.25,20,000
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