Study Material For CBSE Exams By Education Wiz

Class 10 Maths Revision on Real Numbers with must-do and most important questions, including previous years’ CBSE Board exam questions.

The value of k for which the system of equations 3x–y+8=0 and 6x–ky+16=0 has infinitely many solutions Class 10 Mathematics Chapter 3 Pair of linear Equations in two Variables Previous Year Questions

  Class 7 – English Grammar Worksheet Topic: Voice Name: ____________    Class: VII    Section: _____    Date:   A. Change the following sentences from Active Voice to Passive Voice 1. Clean the blackboard. 2. The chef prepared a delicious meal. 3. Open the window. 4. She completed the assignment on time. 5. Switch off the fans. 6. The carpenter made a wooden chair. 7. Bring a glass of water. 8. The teacher explains the lesson clearly. 9. Write the answers carefully. 10. The gardener waters the plants daily. 11. Do not waste food. 12. The children broke the glass accidentally. 13. Finish the work today. 14. He wrote a letter to his cousin. 15. Follow the rules strictly. 16. The police caught the thief. 17. Close the door quietly. 18. The company launched a new product. 19. Help the needy. 20. The mechanic repaired the car.   B. Change the following sentences from Passive Voice to Active Voice 1. Let the door be opened. 2. The r...

Write a quadratic equation with roots as 3 and 5 and coefficient of x as (-8). class 10 mathematics Chapter 4 Quadratic equations most important question #Class10Maths #QuadraticEquations #Maths #CBSEClass10 #BoardExam2026 #MathsImportantQuestions

Twenty seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S′. Find the (i) radius r′ of the new sphere, (ii) ratio of S and S′. class 9 maths chapter 11 surface areas and volumes exercise 11.4 question no 9

EDUCATION WIZ Class 10 Mathematics Chapter 1 Real Numbers important Terms, Concepts and Formulas (For Board Exam 2025-26)    1. Natural Numbers N = {1,2,3,4,.......}   2. Whole Numbers W = {0,1,2,3,.......}   3. Integers Z = {...-2,-1,0,1,2...}   4. Rational Nos R = {-1/3, 4/5, 0, -5, 8} expressible in p/q form where p and q are integers q ≠ 0   5. Irrational Numbers are the numbers which are not rational numbers. (not expressible in p/q form where p and q are integers q ≠ 0 Eg 2.234646788......., π, √2, √3   6. Real Numbers :- the set of rational numbers and irrational numbers   7. Prime numbers:- Number having exactly two factors. Eg 2,3,5,7,11,13,17 etc   8. Smallest Prime number is 2   9. Only Even Prime numbers is 2   10. The smalles...