CBSE Extra Questions for Class 7 Maths

Answer: 30 cm² 
Explanation: Area = 1/2 × base × height = 1/2 × 10 × 6 = 30 cm².

Q7: A sum of ₹5000 is lent at 6% per annum for 2 years. Find simple interest.

Answer: ₹600 
Explanation: SI = P × R × T / 100 = 5000 × 6 × 2 / 100 = 600.

Q8: Divide 48 in the ratio 3:5.

Answer: 18 and 30 
Explanation: Total parts = 3+5=8, each part = 48/8 = 6. Multiply by 3 and 5.

Q9: Find 15% of 360.

Answer: 54 
Explanation: 15% = 15/100 × 360 = 54.

Q10: The marks of 5 students are 45, 50, 55, 60, 70. Find average.

Answer: 56 
Explanation: Average = Sum ÷ Number = 280 ÷ 5 = 56.

Q11: Solve 4y - 7 = 13.

Answer: y = 5 
Explanation: Add 7 both sides → 4y=20 → y=5.

Q12: A car travels 150 km in 3 hours. Find its speed.

Answer: 50 km/h 
Explanation: Speed = Distance / Time = 150 / 3 = 50 km/h.

Q13: Radius of a circle = 7 cm. Find area.

Answer: 154 cm² 
Explanation: Area = π × r² = 22/7 × 7 × 7 = 154 cm².

Q14: Length=8 cm, breadth=5 cm, height=3 cm. Find volume of cuboid.

Answer: 120 cm³ 
Explanation: Volume = l × b × h = 8 × 5 × 3 = 120.

Q15: A die is rolled. Probability of getting 4?

Answer: 1/6 
Explanation: 1 favorable outcome / 6 total outcomes = 1/6.

Q16: Convert 4 hours 30 min into minutes.

Answer: 270 minutes 
Explanation: 4×60 + 30 = 270 min.

Q17: Factorize x² + 7x + 12.

Answer: (x+3)(x+4) 
Explanation: Find two numbers multiplying to 12 and adding to 7.

Q18: Find the square root of 784.

Answer: 28 
Explanation: 28×28 = 784.

Q19: A number increased by 9 gives 25. Find the number.

Answer: 16 
Explanation: x + 9 = 25 → x = 16.

Q20: In a triangle, angles are in ratio 2:3:4. Find each angle.

Answer: 40°, 60°, 80° 
Explanation: Sum = 180°, divide according to ratio.

Also Check: Class 7 Maths Study Resource

• Worksheets Class 7 Maths
• Class 7 Maths Sample Papers
• Class 7 Maths Notes
• Class 7 Maths MCQs

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Also Check: CBSE Class 7 Science Extra Questions

How to Study CBSE Class 7 Maths Extra Questions Effectively 

• Start with the Basics: It is always best to revisit NCERT textbook concepts and then go ahead and do additional questions. This assists in remembering formulas and definitions.
• Crack Chapter-Wise Extravagant Queries: One can use the chapter-wise extra questions of Infinity Learn to learn concept easily. It assists in monitoring progress and get improved over time.
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Importance of Practicing CBSE Class 7 Maths Extra Questions 

• Enhances Theoretical Knowledge: Answering additional questions helps to learn more about mathematical issues.
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Don't Miss Out: CBSE Class 7 Syllabus for All Subjects (2025-26)