Class 9 Olympiad Sample Paper

Subjects: Mathematics, Science & Logical Reasoning
Duration: 90 Minutes
Total Questions: 40
Each question carries 1 mark

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🧠 Section A – Logical Reasoning (10 Questions)

1. Find the next number in the series:
2, 6, 12, 20, 30, ?
A) 36
B) 40
C) 42
D) 50

2. If CAT → 3120, DOG → 4157 (A=1, B=2…), then BAT → ?
A) 2140
B) 2130
C) 2131
D) 2150

3. If all roses are flowers and some flowers are red, which statement is correct?
A) All roses are red
B) Some roses may be red
C) No rose is red
D) All red are roses

4. Find the odd one out:
A) 49
B) 64
C) 81
D) 75

5. A + B = 25, B + C = 30, C + D = 35. If D = 20, what is A?
A) 10
B) 5
C) 15
D) 20

6. Complete the analogy:
Book : Reading :: Knife : ?
A) Cutting
B) Writing
C) Eating
D) Cooking

7. The mirror image of the letter “K” along vertical axis is:
A) K
B) <
C) >
D) Reflection

8. How many diagonals does a hexagon have?
A) 6
B) 9
C) 12
D) 8

9. If a + b = 10 and a – b = 2, then 2a = ?
A) 8
B) 10
C) 12
D) 14

10. Find the missing number:
1, 8, 27, 64, ?
A) 81
B) 100
C) 125
D) 121

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🔢 Section B – Mathematics (15 Questions)

11. Solve: 3x – 5 = 16
A) 5
B) 6
C) 7
D) 8

12. Factorize: x² – 16
A) (x – 4)(x + 4)
B) (x – 8)(x + 2)
C) (x – 2)(x + 8)
D) (x – 16)(x + 1)

13. Solve for y: 2y/5 = 8
A) 10
B) 20
C) 15
D) 25

14. Find LCM of 12, 18, 24
A) 72
B) 48
C) 36
D) 60

15. If a triangle has sides 5 cm, 12 cm, 13 cm, it is:
A) Equilateral
B) Isosceles
C) Right-angled
D) Scalene

16. Solve: 7² – 5² = ?
A) 12
B) 24
C) 49
D) 25

17. A bag contains 5 red, 3 blue, 2 green balls. Probability of picking a green ball:
A) 1/5
B) 1/10
C) 1/2
D) 2/10

18. Find the distance travelled if speed = 60 km/h and time = 2.5 h
A) 150 km
B) 120 km
C) 100 km
D) 160 km

19. If sin θ = 1/2, then θ = ?
A) 30°
B) 45°
C) 60°
D) 90°

20. Area of circle with radius 7 cm (π=22/7)
A) 154 cm²
B) 144 cm²
C) 150 cm²
D) 160 cm²

21. Solve: 5x – 3 = 2x + 6
A) 2
B) 3
C) 4
D) 5

22. Simplify: (2³ × 2⁴) ÷ 2²
A) 4
B) 6
C) 8
D) 16

23. Find the HCF of 36 and 48
A) 6
B) 12
C) 18
D) 24

24. Solve: 1/2 + 3/4 = ?
A) 5/6
B) 1 1/4
C) 1 1/2
D) 1 1/3

25. Solve for x: x/5 + 7 = 12
A) 15
B) 20
C) 25
D) 30

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🔬 Section C – Science (15 Questions)

26. SI unit of force
A) Watt
B) Joule
C) Newton
D) Pascal

27. What is the chemical formula of water?
A) H2O
B) CO2
C) O2
D) H2

28. Photosynthesis takes place in which part of the plant?
A) Root
B) Stem
C) Leaf
D) Flower

29. The gas essential for breathing is:
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen

30. The boiling point of water at sea level:
A) 80°C
B) 90°C
C) 100°C
D) 120°C

31. The unit of electric current is:
A) Volt
B) Ampere
C) Ohm
D) Watt

32. Which planet is called the Red Planet?
A) Venus
B) Mars
C) Mercury
D) Jupiter

33. The human heart has how many chambers?
A) 2
B) 3
C) 4
D) 5

34. The hardest natural substance is:
A) Gold
B) Iron
C) Diamond
D) Quartz

35. Which blood cells fight infection?
A) Red
B) White
C) Platelets
D) Plasma

36. Newton’s First Law is also called:
A) Law of Inertia
B) Law of Motion
C) Law of Gravity
D) Law of Conservation

37. Which of these is an excretory organ?
A) Liver
B) Heart
C) Kidney
D) Lungs

38. Which simple machine is a seesaw?
A) Lever
B) Pulley
C) Screw
D) Wedge

39. Which is a conductor of electricity?
A) Wood
B) Plastic
C) Copper
D) Rubber

40. Which vitamin is obtained from sunlight?
A) Vitamin A
B) Vitamin C
C) Vitamin D
D) Vitamin B

Disclaimer: This is an independently created practice paper for educational use only and is not affiliated with any official Olympiad organization.

Answer

Q. No.	Ans	Q. No.	Ans	Q. No.	Ans	Q. No.	Ans
1	C	11	C	21	C	31	B
2	B	12	A	22	C	32	B
3	B	13	C	23	B	33	C
4	D	14	A	24	B	34	C
5	B	15	C	25	B	35	B
6	A	16	B	26	C	36	A
7	A	17	D	27	A	37	C
8	B	18	A	28	C	38	A
9	C	19	A	29	A	39	C
10	C	20	A	30	C	40	C