NCERT Solutions for Class 9 Maths Chapter 13
Important NCERT Questions
Surface Areas and Volumes
NCERT Books for Session 2022-2023
CBSE Board, UP Board and Other state Boards
EXERCISE 13.5
Page No:228
Questions No:1
A matchbox measures 4 cm × 2.5 cm × 1.5 cm. What will be the volume of a packet containing 12 such boxes?
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Length of matchbox l = 4 cm, breadth b = 2.5 cm and heigth h = 1.5 cm
Volume of matchbox = lbh = 4 × 2.5 × 1.5 = 15 cm³
Therefore, volume of 12 machbox = 12 × 15 = 180 cm³
Hence, the volume of a packet containing 12 boxes is 180 cm³.