kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
Word Problems on Cuboid - I

The length and width of a rectangular metal sheet are 40 cm and 25 cm respectively. Four squares each of side 5 cm are cut and removed from four corners of the sheet, and the remainder is folded to form a cuboid(without the top face). Find the volume.


In the given rectangular sheet has length and breadth equal to 40 cm and 25 cm respectively.
If four corner squares of the side 5 cm are removed and rest is folded into a cuboid.
Then the length and width of the cuboid is reduced by twice the side of square.
Therefore the length of the cuboid = 40 - (2 * 5)
= 40 - 10
length (l)= 30 cm.
The width of the cuboid = 25 - (2 * 5)
= 25 - 10
width (b) = 15 cm.
The height of the cuboid itself is equal to the side of the square removed.
Therefore the height of the cuboid = 5 cm.
Hence the volume of the cuboid is V = l * b * h
V = 30 * 15 * 5
Volume = 2250 cubic centimeters.

Directions: Read the above example carefully and answer the following questions. Also make 10 different examples of your own and illustrate each by making cuboids.

Have your essay responses graded by your teacher and enter your score here!

Your score for this chapter (0-100%) =

Subscription to kwizNET Learning System offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to

Quiz Timer