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Question

Find the cost of digging a cuboidal pit 8 m long, 6 m broad and 3 m deep at the rate of Rs 30 per m3.

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Solution

The given cuboidal pit has its length (l) as 8 m, width (b) as 6 m, and depth (h) as 3 m.

Volume of the pit=l×b×h=(8×6×3)m3=144 m3

Cost of digging per m3 volume = Rs. 30

Cost of digging 144 m3 volume = Rs. (144×30) = Rs.4320


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