Most Repeated SSC GD Math Questions

1. Percentage

• Q: A number is increased by 20% and then decreased by 25%. What is the net percentage change? Answer: -10%
• Q: If 40% of a number is 80, find the number. Answer: 200

2. Profit, Loss, and Discount

• Q: A shopkeeper bought an item for ₹800 and sold it for ₹1,000. Find the profit percentage. Answer: 25%
• Q: An article is sold at a discount of 20%, and the selling price is ₹480. Find the marked price. Answer: ₹600

3. Time and Work

• Q: A can complete a work in 10 days, and B can complete the same work in 15 days. If they work together, how many days will they take to complete the work? Answer: 6 days
• Q: A pipe can fill a tank in 12 hours, and another pipe can empty it in 16 hours. If both are opened together, how long will it take to fill the tank? Answer: 48 hours

4. Time, Speed, and Distance

• Q: A train 150 m long is running at 60 km/h. How much time will it take to cross a pole? Answer: 9 seconds
• Q: Two trains of lengths 200 m and 300 m are running at 40 km/h and 20 km/h in opposite directions. Find the time to cross each other. Answer: 30 seconds

5. Simple and Compound Interest

• Q: Find the simple interest on ₹5,000 for 2 years at 5% per annum. Answer: ₹500
• Q: A sum of ₹10,000 is compounded annually at a rate of 10% for 2 years. Find the compound interest. Answer: ₹2,100

6. Geometry and Trigonometry

• Q: Find the area of a circle with a radius of 7 cm. Answer: 154 cm²
• Q: If sin θ = 3/5, find cos θ. Answer: 4/5

7. Miscellaneous

• Q: What is the HCF of 36 and 48? Answer: 12
• Q: Find the remainder when 789 is divided by 7. Answer: 6
• Q: If the average of 5 numbers is 20, find their total sum. Answer: 100