TNPSC Group 4 - Simplification percentage highest common factor HCF and lowest common multiple LCM. Online Test (MCQ Quiz)

1. What is the value of (15 + 25) * 3 - 10?

A) 110 B) 100 C) 120 D) 90

2. Calculate 50% of 200.

A) 50 B) 150 C) 100 D) 200

3. Find the HCF of 12 and 18.

A) 2 B) 3 C) 6 D) 12

4. What is the LCM of 4 and 6?

A) 4 B) 6 C) 12 D) 24

5. Simplify: 100 / (5 * 2) + 5.

A) 10 B) 15 C) 20 D) 25

6. If a number is increased by 20%, it becomes 120. What is the original number?

A) 96 B) 100 C) 110 D) 120

7. Find the HCF of 24 and 36 using the prime factorization method.

A) 4 B) 6 C) 12 D) 18

8. Calculate the LCM of 15 and 25.

A) 5 B) 15 C) 75 D) 375

9. What is 75% of 80?

A) 50 B) 60 C) 70 D) 90

10. Simplify: (3 * 4) + (10 / 2) - 3.

A) 14 B) 10 C) 12 D) 15

11. A shopkeeper sells an item for Rs. 500 after giving a 20% discount. What was the original marked price?

A) Rs. 600 B) Rs. 625 C) Rs. 650 D) Rs. 700

12. Find the HCF of 45 and 60.

A) 5 B) 10 C) 15 D) 30

13. What is the LCM of 8 and 12?

A) 16 B) 24 C) 36 D) 48

14. If a price is reduced by 10%, it becomes Rs. 180. What was the original price?

A) Rs. 190 B) Rs. 200 C) Rs. 210 D) Rs. 220

15. Simplify: 50 - (10 * 3) + (20 / 4).

A) 25 B) 30 C) 35 D) 40

16. What is 30% of 150?

A) 30 B) 45 C) 60 D) 75

17. Find the HCF of 72 and 90.

A) 9 B) 18 C) 36 D) 72

18. Calculate the LCM of 10, 15, and 20.

A) 30 B) 40 C) 60 D) 120

19. A number is increased by 25% and then decreased by 20%. What is the net percentage change?

A) 0% B) 5% increase C) 5% decrease D) 10% increase

20. Simplify: 12 + [18 - (5 * 2)] / 2.

A) 15 B) 16 C) 17 D) 18

21. What is the value of 1/4 as a percentage?

A) 4% B) 10% C) 25% D) 50%

22. Find the HCF of 105 and 140.

A) 5 B) 7 C) 35 D) 70

23. What is the LCM of 7 and 9?

A) 16 B) 21 C) 63 D) 126

24. If 60% of a number is 300, what is the number?

A) 450 B) 500 C) 550 D) 600

25. Simplify: 72 / (6 * 2) + 10 - 3.

A) 13 B) 10 C) 16 D) 19

26. What is 150% of 50?

A) 75 B) 100 C) 125 D) 150

27. Find the HCF of 96 and 144.

A) 12 B) 16 C) 24 D) 48

28. Calculate the LCM of 6, 8, and 10.

A) 40 B) 60 C) 80 D) 120

29. A man saves 15% of his income. If he saves Rs. 750 per month, what is his monthly income?

A) Rs. 4500 B) Rs. 5000 C) Rs. 5500 D) Rs. 6000

30. Simplify: 100 - [50 + (20 * 3) - 10].

A) 10 B) 20 C) 30 D) 40

31. What is 0.75 as a percentage?

A) 0.75% B) 7.5% C) 75% D) 750%

32. Find the HCF of 135 and 180.

A) 15 B) 30 C) 45 D) 90

33. What is the LCM of 12 and 18?

A) 18 B) 24 C) 36 D) 72

34. If a number is decreased by 15%, it becomes 170. What is the original number?

A) 190 B) 195 C) 200 D) 205

35. Simplify: 45 / (9 - 6) * 2 + 5.

A) 25 B) 30 C) 35 D) 40

36. What is 250% of 40?

A) 80 B) 100 C) 120 D) 150

37. Find the HCF of 210 and 330.

A) 10 B) 21 C) 30 D) 70

38. Calculate the LCM of 5, 10, and 15.

A) 15 B) 30 C) 45 D) 60

39. A candidate needs 40% marks to pass an exam. If a student scores 200 marks but fails by 50 marks, what is the maximum marks for the exam?

A) 500 B) 550 C) 600 D) 625

40. Simplify: 60 + [40 - (5 * 4)] / 5.

A) 64 B) 68 C) 70 D) 72

41. What is 3/5 as a percentage?

A) 35% B) 50% C) 60% D) 75%

42. Find the HCF of 18, 24, and 30.

A) 2 B) 3 C) 6 D) 12

43. What is the LCM of 9, 12, and 15?

A) 90 B) 120 C) 180 D) 360

44. If the price of an article is increased by 25% and then decreased by 20%, what is the net change in price?

A) 10% increase B) 5% increase C) No change D) 5% decrease

45. Simplify: 15 * [12 / (3 + 1) - 2].

A) 10 B) 15 C) 20 D) 30

46. What is the value of 12.5% as a fraction?

A) 1/4 B) 1/8 C) 1/10 D) 1/12

47. Find the HCF of 54 and 72.

A) 6 B) 9 C) 18 D) 27

48. What is the LCM of 14 and 21?

A) 21 B) 28 C) 42 D) 84

49. A number is 20% more than another number. By what percentage is the first number less than the second number?

A) 16.67% B) 20% C) 25% D) 15%

50. Simplify: 80 / (4 * 5) + (10 - 2) * 3.

A) 28 B) 30 C) 32 D) 34

Simplification percentage highest common factor HCF and lowest common multiple LCM. - Online Test

Test Results