Mathematics MCQs with Answers
- Best For students
- 1 Hrs
Prepare important and challenging Mathematics MCQs designed for scholarship tests, competitive exams, and job interview tests. These questions cover algebra, geometry, trigonometry, arithmetic, probability, and advanced problem-solving to strengthen your concepts and sharpen your skills.
Q1. If 3x + 7 = 19, then the value of x is:
A) 3
B) 4
C) 5
D) 6
Answer (B) 4
Q2. The square root of 144 is:
A) 10
B) 11
C) 12
D) 13
Answer (C) 12
Q3. If a triangle has angles 90°, 45°, and 45°, it is called:
A) Equilateral Triangle
B) Isosceles Right Triangle
C) Scalene Triangle
D) Acute Triangle
Answer (B) Isosceles Right Triangle
Q4. The value of π (Pi) is approximately:
A) 2.12
B) 3.14
C) 3.41
D) 2.72
Answer (B) 3.14
Q5. The area of a circle with radius 7 cm is:
A) 154 cm²
B) 144 cm²
C) 147 cm²
D) 150 cm²
Answer (A) 154 cm²
Q6. The solution of equation 2x – 8 = 0 is:
A) 8
B) 6
C) 4
D) 2
Answer (C) 4
Q7. If sinθ = 1, then θ is equal to:
A) 30°
B) 45°
C) 60°
D) 90°
Answer (D) 90°
Q8. A polygon with 8 sides is called:
A) Hexagon
B) Octagon
C) Pentagon
D) Nonagon
Answer (B) Octagon
Q9. The formula for the volume of a sphere is:
A) 4πr²
B) (4/3)πr³
C) πr²h
D) 2πrh
Answer (B) (4/3)πr³
Q10. If 5 pencils cost Rs. 25, then the cost of 1 pencil is:
A) Rs. 2
B) Rs. 3
C) Rs. 4
D) Rs. 5
Answer (D) Rs. 5
Q11. The mean of 2, 4, 6, 8 is:
A) 4
B) 5
C) 6
D) 7
Answer (B) 5
Q12. The probability of getting 6 on a dice is:
A) 1/2
B) 1/3
C) 1/6
D) 1/12
Answer (C) 1/6
Q13. The perimeter of a square of side 5 cm is:
A) 15 cm
B) 20 cm
C) 25 cm
D) 30 cm
Answer (B) 20 cm
Q14. 15% of 200 is equal to:
A) 25
B) 30
C) 35
D) 40
Answer (B) 30
Q15. The derivative of x² is:
A) 2x
B) x
C) x²
D) 1
Answer (A) 2x
Q16. The number of degrees in a straight angle is:
A) 45°
B) 90°
C) 180°
D) 360°
Answer (C) 180°
Q17. The factors of x² – 9 are:
A) (x – 3)(x – 3)
B) (x – 9)(x + 1)
C) (x – 3)(x + 3)
D) (x² – 9)(x + 1)
Answer (C) (x – 3)(x + 3)
Q18. The value of log10(1000) is:
A) 1
B) 2
C) 3
D) 4
Answer (C) 3
Q19. If tanθ = 1, then θ =
A) 30°
B) 45°
C) 60°
D) 90°
Answer (B) 45°
Q20. The mode of 2, 3, 4, 3, 5, 3, 6 is:
A) 2
B) 3
C) 4
D) 5
Answer (B) 3
Q21. The length of the hypotenuse of a right triangle with base 6 and height 8 is:
A) 9
B) 10
C) 11
D) 12
Answer (B) 10
Q22. The value of cos 0° is:
A) 0
B) 1
C) √3/2
D) 1/2
Answer (B) 1
Q23. Which is the smallest prime number?
A) 0
B) 1
C) 2
D) 3
Answer (C) 2
Q24. The sum of interior angles of a pentagon is:
A) 360°
B) 540°
C) 720°
D) 900°
Answer (B) 540°
Q25. The solution of 2x + 3 = 11 is:
A) 3
B) 4
C) 5
D) 6
Answer (B) 4
Q26. The slope of the line y = 3x + 2 is:
A) 2
B) 3
C) –3
D) 0
Answer (B) 3
Q27. If a = 2 and b = 3, then (a + b)² =
A) 10
B) 12
C) 25
D) 36
Answer (C) 25
Q28. The multiplicative inverse of 5 is:
A) 1/5
B) –5
C) 0
D) 5
Answer (A) 1/5
Q29. The area of a rectangle with length 10 and width 4 is:
A) 14
B) 20
C) 30
D) 40
Answer (D) 40
Q30. The value of cos²θ + sin²θ is:
A) 0
B) 1
C) 2
D) Undefined
Answer (B) 1
Q31. 7! (factorial of 7) is equal to:
A) 720
B) 5040
C) 3620
D) 40320
Answer (B) 5040
Q32. The cube root of 64 is:
A) 2
B) 3
C) 4
D) 8
Answer (C) 4
Q33. The standard deviation is the square root of:
A) Mean
B) Median
C) Variance
D) Mode
Answer (C) Variance
Q34. If 2x = 64, then x =
A) 6
B) 32
C) 64
D) 128
Answer (B) 32
Q35. A triangle with sides 3, 4, 5 is a:
A) Equilateral Triangle
B) Right Triangle
C) Isosceles Triangle
D) Scalene Triangle
Answer (B) Right Triangle
Q36. The expansion of (x + y)(x – y) is:
A) x² – y²
B) x² + y²
C) x² – 2xy + y²
D) x² + 2xy + y²
Answer (A) x² – y²
Q37. The value of log(1) to any base is:
A) 0
B) 1
C) Undefined
D) Base itself
Answer (A) 0
Q38. If 12 workers finish a job in 10 days, then 6 workers will finish it in:
A) 15 days
B) 20 days
C) 25 days
D) 30 days
Answer (B) 20 days
Q39. The equation of a circle with radius r and center (0,0) is:
A) x² + y² = r²
B) x² – y² = r²
C) x² + y = r²
D) y² = x² + r²
Answer (A) x² + y² = r²
Q40. The median of 2, 4, 6, 8, 10 is:
A) 4
B) 5
C) 6
D) 7
Answer (C) 6
Q41. If cosθ = 0, then θ =
A) 0°
B) 30°
C) 60°
D) 90°
Answer (D) 90°
Q42. If 2x + y = 10 and x = 3, then y =
A) 2
B) 3
C) 4
D) 5
Answer (A) 4
Q43. The roots of x² – 16 = 0 are:
A) ±2
B) ±4
C) ±8
D) ±16
Answer (B) ±4
Q44. The circumference of a circle with diameter 14 cm is:
A) 22 cm
B) 28 cm
C) 44 cm
D) 66 cm
Answer (C) 44 cm
Q45. A line parallel to x-axis has slope:
A) 0
B) 1
C) ∞
D) –1
Answer (A) 0
Q46. The first prime number after 50 is:
A) 51
B) 52
C) 53
D) 55
Answer (C) 53
Q47. If 3x = 81, then x =
A) 9
B) 27
C) 81
D) 243
Answer (A) 9
Q48. The area of a triangle with base 12 and height 6 is:
A) 24
B) 36
C) 48
D) 72
Answer (B) 36
Q49. The equation of Pythagoras theorem is:
A) a² + b² = c²
B) a² – b² = c²
C) a² + b = c²
D) a + b² = c²
Answer (A) a² + b² = c²
Q50. The sum of the first 20 natural numbers is:
A) 190
B) 200
C) 210
D) 220
Answer (C) 210
