Question

what will be cost of digging a cuboidal pit 2 m long 1.5 m broad 10 m long at rate of 50 per cube m
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Answer 1

Answer: l=8 m, b=6 m, h=3 m

Volume =l×b×h=(8×6×2)m  cube

=144m  cube

 

Cost of digging per $m^{3}$  

 volume =Rs.30

Cost of digging per 144$m^{3}$

 volume =Rs.144×30

= Rs. 4320

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