Word Problems: Volume | Mathematics for Class 5 PDF Download

Q1: Find the volume of a cube of side 8 cm.
Ans: Volume of cube = l x l x l = 8 x 8 x 8 = 512 cu cm

Q2: Find the volume of a cuboid of dimensions 18 cm x 30 mm x 15 cm.
Ans:
l = 18 cm,
b = 30 mm = 3 cm (10 mm =1 cm, 30/10 = 3 cm),
h = 15 cm
Volume of cuboid = l x b x h
= 18 x 3 x 15
= 810 cu cm

Q3: Find the number of cubical boxes of cubical side 5 cm, which can be accommodated in carton of dimensions 25 cm x 10 cm x 15 cm.
Ans:
Volume of cubical box = side x side x side
= 5 x 5 x 5
= 125 cu cm
Volume of carton = 25 x 10 x 15
= 3750 cu cm
No. of boxes = Volume of carton/Volume of each box
= 3750/125
= 30 

Q4: Find the volume of a cuboid of dimensions 16 cm x 10 m x 6 cm.
Ans: Volume of cuboid = l x b x h = 16 x 10 x 6 = 960 cu cm

Q5: Find the volume of a cuboid of dimensions 21 mm x 2 cm x 12 mm in cu. cm.
Ans:
10 mm = 1 cm
Therefore, 21 mm = 21/10 cm = 2.1 cm
And 12 mm = 12/10 = 1.2 cm
Length = 2.1 cm, breadth = 2 cm, height = 1.2 cm
Volume of cuboid = l x b x h
= 2.1 x 2 x 1.2
= 5.04 cu cm