Question

# How many bullets can be made out of a cube of lead, whose edge measures 22 cm, each bullet being 2 cm in diameter?

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Solution

## Edge of the cube (r)=22cm∴Volume=a3=(22)3cm3=22×22×22=10648cm3 Diameter of a bullet = 2 cm ∴ Radius (r) =22=1cm ∴ Volume of 1 bullet =43πr3 =43×227×1×1×1cm3=8821cm3 Number of bullets=Total volumeVolume of one bullet=10648×2188=2541

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