10th class maths tricks #10thclass #objective #10thclassmath #10thclassdiaries

10th class maths tricks #10thclass #objective #10thclassmath #10thclassdiaries 🧮 10th Class Maths Objective Questions 🔢 Chapter: Real Numbers Q1. The HCF of 60 and 75 is: a) 5 b) 15 c) 10 d) 20 ✅ Answer: b) 15 Q2. Every rational number is: a) An integer b) A natural number c) A real number d) An irrational number ✅ Answer: c) A real number --- 📐 Chapter: Polynomials Q3. If α and β are the zeroes of the polynomial ax² + bx + c, then α + β = ? a) -b/a b) b/a c) c/a d) a/b ✅ Answer: a) -b/a Q4. Number of zeroes of the polynomial f(x) = x² – 4 is: a) 0 b) 1 c) 2 d) Infinite ✅ Answer: c) 2 --- 📊 Chapter: Statistics Q5. The mean of first five natural numbers is: a) 2 b) 3 c) 4 d) 5 ✅ Answer: b) 3 Q6. Median of 2, 4, 6, 8, 10 is: a) 5 b) 6 c) 7 d) 8 ✅ Answer: b) 6 --- 📏 Chapter: Surface Areas and Volumes Q7. The volume of a cube of side 4 cm is: a) 64 cm³ b) 16 cm³ c) 32 cm³ d) 48 cm³ ✅ Answer: a) 64 cm³ Q8. Surface area of a sphere is given by: a) 2πr² b) 4πr² c) 3πr² d) πr² ✅ Answer: b) 4πr² --- ✔ True/False Section Q9. All irrational numbers are real numbers. — ✅ True Q10. A quadratic polynomial has at most 3 zeroes. — ❌ False Q11. The mode is always greater than the median. — ❌ False --- ✍️ Fill in the Blanks Q12. The discriminant of a quadratic equation ax² + bx + c = 0 is ________. ✅ Answer: b² – 4ac Q13. Pythagoras theorem is applicable only to ________ triangles. ✅ Answer: Right-angled