Question

and 21 m deep is to be dug. Find the cost of digging the well at 1.50 per cubic metre, The volume of a cylinder is 5346 cm' and its height is 21 cm. Find its radius and hence its curved surface area. thin The thickness of metal minei 15 The inner diameter is 21 cm What is the volume of the metal​

Answer 1

Answer:

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

Volume =l×b×h=(8×6×2)m

3

=144m

3

Cost of digging per m

3

volume =Rs.30

Cost of digging per 144m

3

volume =Rs.144×30