How many spherical bullets can be made out of a solid cube

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

1. 2550
2. 2541
3. 2500
4. 2575

Correct Option: B

Volume of 1 bullet = 4/3π(2)³ = (32/3 x 22/7) cm³
Volume of the cube = (44)³
∴ Number of bullets = Volume of solid/Volume of 1 bullet
= (44)³ x 3 x 7 / 32 x 22 = 2541