The External Dimensions of a Closed Wooden Box Are 48 Cm, 36 Cm, 30 Cm. the Box is Made of 1.5 Cm Thick Wood. - Mathematics

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The external dimensions of a closed wooden box are 48 cm, 36 cm, 30 cm. The box is made of 1.5 cm thick wood. How many bricks of size 6 cm x 3 cm x 0.75 cm can be put in this box?

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Given internal dimensions are




∴ Internal volume =`45xx33xx27cm^3`

Volume of brick = `5xx3xx0.75cm^3`

Hence, number of bricks= `"Internal volume"/"volume of 1 brick"`




`∴2970  "bricks can be kept inside the box"`

Concept: Volume of a Cuboid
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RD Sharma Mathematics for Class 9
Chapter 18 Surface Areas and Volume of a Cuboid and Cube
Exercise 18.2 | Q 12 | Page 30

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