Question

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

With Full explaination .

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Answer 1

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Given

• l=8 m
• b=6 m
• h=3 m

Volume =l×b×h=(8×6×2)m³

=144m³

Cost of digging per m³

volume =Rs.30

Cost of digging per 144m³

volume =Rs.144×30

= Rs. 4320

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Answer 2

Question :-

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

To find :-

Cost of digging .

Given :-

• Length   =     8m

• breath   =       6m

• Height    =        3m

• Cost       =     ₹ 30 per $\mathsf{m^3}$

Solution :-

• Here first we have to find the volume of of cubiod and then we have to multiply the  volume of cubiod by the cost .

$\mathsf{:\longrightarrow\:Volume\:of\:cubiod\:=\:L\:\times\:B\:\times\:H}$

$\mathsf{:\longrightarrow\:Volume\:of\:cubiod\:=\:8\times\:6\:\times\:3}$

$\mathsf{:\longrightarrow\:Volume\:of\:cubiod\:=\:144m^3}$

Now ,

we have to multiply the volume of cubiod by the cost .

$\mathsf{:\longrightarrow\:volume\:of\:coubiod\:\times\:cost\:of\:per\:m^3}$

$\mathsf{:\longrightarrow\:144\:\times\:30\:m^3}$

$\mathsf{:\longrightarrow\:Cost \:of\: digging\:=\:₹\:4320}$

Final Answer :-

$\mathsf{:\longrightarrow\:Cost \:of\: digging\:=\:₹\:4320}$