# 16 Glass Spheres Each of Radius 2 Cm Are Packed into a Cuboidal Box of Internal Dimensions 16 C M × 8 C M × 8 C M and Then the Box is Filled with Water . Find the Volume of the - Mathematics

16 glass spheres each of radius  2 cm are packed into a cuboidal box of internal dimensions  $16 cm \times 8 cm \times 8 cm$ and then the box is filled with water . Find the volume of the water filled in the box .

#### Solution

Radius of the glass spheres, r = 2 cm
Dimensions of the cuboidal box =  $16cm \times 8cm \times 8cm$

volume of the spheres =  $V_s = \frac{4}{3}\pi \left( r \right)^3 = \frac{4}{3}\pi \left( 2 \right)^3$

volume of the cuboidal box =  $V_c = 16 \times 8 \times 8 = 1024$

Volume of water in the cuboidal box = Volume of the cuboidal box − Volume of the 16 glass spheres

$= 1024 - 16 \times \frac{4}{3}\pi \left( 2 \right)^3$

$= 1024 - 536 . 6$

$= 487 . 6 {cm}^3$

Hence, the volume of the water in the cuboidal box = 487.6 cm3

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#### APPEARS IN

RD Sharma Class 10 Maths
Chapter 14 Surface Areas and Volumes
Exercise 14.1 | Q 48 | Page 30