Mathematics Quiz Class 9

A quiz on class 9 Maths with answers.

1. Rules There are 3 rounds in the quiz: Round 1) MCQ Round 2) Riddles Round 3) Visual Round In MCQ Round, all the incorrect options will disappear and only the correct answer will be left..! Riddles Round is just an interactive and a mind fresher round..! If you will solve the quiz think that you have successfully become a mathematician. Note: All questions are related to class IX th Syllabus except the Riddles Round. Rules

2. MCQ ROUND ROUND

3. Who gave the famous formula for taking out area of a scalene triangle and what is the formula? a) Heron, 1/2 × b × h b) Archimedes, 4 × side c) Archimedes, d) Heron, Answer: (d)

4. 2) What kind of decimal expansion does a rational number have? a) Terminating b) Non-terminating c) Reoccurring d) All of these Answer: (d)

5. 3) The highest exponent in a polynomial: a) Degree b) Mode c) Mean d) None of these Answer : (a)

6. 4) Which of the following is incorrect: a) It is possible to extend a line segment continuously in both directions. b) Things which are equal to the same thing are also equal to one another. c) If equals are added to equals, the wholes are unequal. d) The whole is greater than the part . Answer : (a)

7. 5) If a transversal intersects 2 parallel lines, then ______ angles are equal a) Alternate interior angles b) Corresponding angles c) Both (a) and (b) d) None of these Answer : (c)

8. 6) 2 adjacent angles on a straight line add upto 180 degrees by _____ Theorem. Corresponding Angles Linear Pair Vertically opposite None of these Answer: (b)

9. RIDDLES ROUND

10. 1) A lady buys goods worth Rs. 200 from a shop (shopkeeper selling goods with zero profit) lady pays with a 1000 Rs note to the shopkeeper. He gets change from the next shop & keeps 200 for himself & returns 800 to the lady. After sometime the next shop owner returns the 1000 Rs. note saying it is fake & takes the money back. How much loss did the shopkeeper suffer?

11. Answer: Rs 1000 Profit or Loss= Money Received-Money Given In this case, Fake note is Equivalent to Rs. 0 So, Actual Money Received= Rs.       0   (Lady)                                     +Rs.  1000   ( Neighbour )                                   ----------------------------------                         Total= Rs. 1000                                   ---------------------------------- Money Given=Rs. 200  (Goods)                      Rs. 800 (Change to Lady)                      Rs.1000(Neighbour )                     ----------------------------------------             Total=Rs. 2000                     ---------------------------------------- Profit/Loss= Money Received-Money Given        =Rs.1000-Rs.2000        =Rs. -1000 Thus a Loss of Rs. 1000

12. 2) How can you add eight 8's to get the number 1,000? (only use addition) Answer: 888 +88 +8 +8 +8 =1,000

13. VISUAL ROUND

14. 1) Identify the mathematician: Answer: Heron

15. 2) Identify the mathematician: Answer: Ramanujan

16. 3 ) Identify the mathematician: Answer: Euclid

17. 4 ) Identify the mathematician: Answer:Pythagoras

18. 5) Identify the mathematician: Answer:Euler

19. 6) What is the different between the two figures? Answer: First figure is a simple circle whereas the second figure shows concentric circles.

20. 7) In the following figure identify the corresponding angles? Answer: a-g, d-f, c-e, b-h

21. 8) In the following figure identify the alternate interior angles? Answer: b-f, c-g

22. 9) In the following figure what is the sum of pair of angles c-f and what kind of angles are these? Answer: 180 °, Co-Interior angles

23. 10) In the following figure the sum of angles a, b and c is and by which property? Answer: 180 °, Angle Sum Property

24. 11) In the following figure show Exterior angle property? Answer: ∠d= ∠a + ∠b

25. 12) In the following figure ∠a = ∠b by which property? Answer: Vertically Opposite angles

26. THANK YOU Made by : Samyak Jain