Chapter 15: Finding the Unknown - Solutions
Chapter solutions are on NCERT Archive
Step-by-step solutions for this chapter now live on NCERT Archive, along with the chapter itself. Use the buttons below to open them.
About Chapter 15 (Finding the Unknown)
Chapter 15 (Finding the Unknown) is chapter 15 of 15 in the new edition of Ganita Prakash (NCERT Class 7 Mathematics), a textbook for Class 7 students at the Upper Primary (Middle) stage. This is the new edition, the textbook brought out under the NEP 2020 / NCF-SE 2023 syllabus rollout.
It is the closing chapter of the book, coming right after Chapter 14 (Constructions and Tilings).
What the solutions on NCERT Archive include
NCERT Archive is our dedicated site for NCERT textbooks and solutions, Class 1 to 12. The solutions page for Chapter 15 (Finding the Unknown) there gives chapter-wise answers to the questions of Ganita Prakash (NCERT Class 7 Mathematics), written to follow the order of the textbook, and links back to the chapter itself. Use the buttons above to go to it.
How to study Finding the Unknown
- Read the worked examples before the exercises and copy out each step in your own hand.
- Attempt every exercise question yourself first; open the solution only to check your method or when you are stuck.
- Keep a short list of formulas and definitions from the chapter and revise it before tests.
- Redo the questions you got wrong after a day or two, without looking at the solution.
Frequently Asked Questions
Which book is Chapter 15 (Finding the Unknown) of Class 7 Mathematics from?
It is from the new edition of Ganita Prakash (NCERT Class 7 Mathematics). The book has 15 chapters, and this is chapter 15.
Where can I find the solutions for Chapter 15 (Finding the Unknown) of Class 7 Mathematics?
On NCERT Archive. Press the "Open Chapter Solutions" button on this page and you will land on the solutions page for this chapter there.
Is this the new edition or the old edition?
This page is for the new edition. If your school still uses the earlier textbook, use the Old Edition switch at the top of the page.
Is it free to use?
Yes. Scholar Donkey and NCERT Archive are free to use and need no login.