Question 1091360
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<pre>
The volume of the cylinder is V = {{{pi*r^2*h}}} = {{{3.14*0.4^2*8}}} = 4.0192 {{{m^3}}}.


The weight = 2.5 {{{ton/m^3}}} * 4.0192 {{{m^3}}} = 10.048 ton.
</pre>

Any other answer is WRONG.