1. The average of first 10 natural numbers is:
2. If 40% of a number is 120, what is the number?
3. A can complete a task in 12 days and B in 18 days. Working together, how long will they take?
4. The simple interest on ₹5000 at 6% p.a. for 2 years is:
5. A shopkeeper allows a discount of 10% on the marked price. If he still gains 8%, the cost price of ₹1800 article is:
6. What is the value of 3√(8x²) when x = 2?
7. A man covers a distance in 24 minutes at 10 km/h. What is the distance?
8. What is the cube root of 729?
9. The average of 20 numbers is 35. If two numbers 45 and 55 are removed, the new average is:
10. A trader marks his goods 30% above cost price and gives a discount of 10%. His profit % is:
11. The LCM of 24 and 36 is:
12. If x² - 5x + 6 = 0, what are the roots?
13. A cylinder has radius 7 cm and height 10 cm. What is the volume?
14. What is the HCF of 84 and 120?
15. 2x + 3y = 12 and x + y = 5. Find x and y.
16. The perimeter of a square is 64 cm. What is the area?
17. If the speed of a car is increased by 20%, how much time will it save on a journey of fixed distance?
18. 75% of a number is 225. What is 40% of the same number?
19. If sin A = 3/5, find cos A:
20. The average of 5 consecutive odd numbers starting from 11 is:
21. Find the square root of 625.
22. In how many years will ₹2000 become ₹2200 at 5% simple interest?
23. The area of a triangle with base 10 cm and height 5 cm is:
24. If a = 2, b = 3, what is the value of a² + b²?
25. What is the perimeter of a rectangle of length 8 cm and breadth 4 cm?
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