# The dimensions of cuboid are 18 cm Ã— 12cm Ã— 10cm. 7 spheres of radius 3cm are dropped into it so that they are completely immersed find volume of cuboid

Solution:

Dimensions of cuboid  $\\= 18\times 12\times 10$

Radius of sphere$\\= 3$ cm

Volume of cuboid $\\= (18\times 12\times 10)cm^3$

Volume of 7 spheres  $\\ =(4/3)\times (22/7)\times 3\times 3\times 3\times 7=792cm^3$

Volume of remaining cuboid $\\ =2160-792=1368cm^3$

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