Question

# How many spherical bullets can be made out of a solid cube of lead whose edge measures 44 cm, each bullet being 4 cm in diameter?

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Solution

## Edges of a solid cube=44cm∴Volume=a3=(44)3cm3=44×44×44cm3 Diameter of a spherical bullet = 4 cm ∴ Radius (r)=42=2cm Now volume of one bullet =43πr3=43×227×2×2×2cm3=70421cm3 Now number of bullets from the cube =Volume of cubeVolume of one bullet =44×44×44×21704 =1788864704 =2541

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