Question

A candle is in the shape of cylinder of height 20 cm and Base radius 2.5cm is melted and recast into sphere of radius 2.5cm ,find the number of spherestudents?

Answer 1

Volume of candle (V1) = Pie × r×r×h
= pie × 2.5×2.5× 20

Volume of 1 sphere (V2 ) = 4/3×pie×r×r×r
= 4/3×pie×2.5×2.5×2.5

No of sphere = V1÷V2
= pie×2.5×2.5×20÷ pie×4/3×pie×2.5×2.5×2.5

= 20÷2.5 [ pie cancels with pie and
two 2.5 cancels with two
2.5]

= 8

If you satisfied mark it brainliest.