a solid mental cube of side 46cm is melted and molten metal is recast into cylindrical solids of diameter 4cm and height 3.2cm. how many solids can be made
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SOLUTION:
For solid metal cube,
Volume = (46cm)*(46cm)*(46cm) =97336 cm³
For cylindrical solid,
diameter =4cm ; height =3.2 cm
∴ radius =2cm
Volume = π*r²*h (formula of volume of solid cylinder)
=(22/7)*(2cm)²*(3.2cm)
=40.21 cm³
∴ no. of solid cylinder formed =
Volume of solid cube ÷ Volume of cylindrical solid
=97336 cm³÷40.21 cm³
= 2420 (nearly) ANS.
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