Section A — Multiple Choice Questions
Choose the correct option. (1 mark each)
1. (x + 3)(x − 3) =
2. The point (−3, 4) lies in the
3. The probability of getting a head when a fair coin is tossed once is
4. The 10th term of the AP 3, 7, 11, … is
5. The perimeter of a rectangle of length 12 cm and breadth 5 cm is
6. The area of a circle of radius 7 cm (π = 22/7) is
7. Which of these is a rational number?
8. The value of 2³ × 2⁴ is
9. The zero of the polynomial 2x − 6 is
10. The value of 99² is
Section B — Fill in the Blanks & True / False
Fill in each blank, or write True / False. (1 mark each)
11. The point (0, 4) lies on the ______-axis.
12. The sum of the probabilities of all the outcomes of an experiment is ______.
13. Every integer is a rational number. ( )
14. (a − b)² = a² − b². ( )
15. The common difference of the AP 5, 8, 11, … is ______.
16. The circumference of a circle is 2π times its ______.
17. A linear polynomial has exactly one zero. ( )
18. The area of a triangle is ½ × base × ______.
Section C — Short Answer Questions
Show your working. (2 marks each)
19. Expand (2x + 3)².
20. Find the zero of p(x) = 3x − 9.
21. A bag has 3 red and 5 blue balls. Find the probability of drawing a red ball.
22. Find the 15th term of the AP 2, 5, 8, …
23. Find the perimeter and area of a rectangle 9 cm by 4 cm.
24. Write the coordinates of the reflection of (3, −2) in the x-axis.
25. Evaluate 2⁵ ÷ 2².
26. Factorise x² − 16.
Section D — Problem Solving
Show all steps. (4 marks each)
27. Using suitable identities, find (a) 102 × 98, (b) 103² and (c) 97².
28. For the AP 5, 9, 13, … find (a) the common difference, (b) the 20th term and (c) the sum of the first 20 terms.
29. A circular park has radius 14 m. (π = 22/7) Find (a) its area, (b) its circumference and (c) the cost of fencing it at ₹20 per metre.
30. A fair die is rolled once. Find the probability of getting (a) an even number, (b) a prime number, (c) a number greater than 4 and (d) the number 7.