30 Day Basic Math Genius Quiz Challenge

1. A population increases by 25% to become 5,000. What was the initial population?

2. The value of a car depreciates by 20% each year. If it was bought for INR 1,00,000, what is its value after one year?

3. A number is increased by 40% to become 420. What was the original number?

4. The price of a product increases by 20% to INR 240. What was the original price?

5. What is 12.5% of 640?

6. A student scores 360 out of 450 in an exam. What is the percentage score?

7. What is 5/6 of 720?

8. A man spends 60% of his income and saves INR 4,000. What is his income?

9. Solve for x: 11x - 21 = 100

10. What percentage is 45 of 180?

11. A product’s price after a 30% markup is INR 780. What was the initial price?

12. 25% of a number is 75. What is 50% of the number?

13. The cost of a laptop is increased by 25% and the new price is INR 37,500. Find the original cost.

14. If a fan costs INR 3,200 with a 15% discount, what is the sale price?

15. If a washing machine costs INR 28,000 with a 15% discount, what is the sale price?

16. If the radius of a circle is 24 cm, what is its circumference? (Use π = 3.14)

17. An item was marked up by 30% and sold for INR 780. What was the original price?

18. A store sells an item at INR 300 after giving a 25% discount. What was the original price?

19. If x + 45 = 112, what is x?

20. A shirt is sold at INR 450 after a 10% discount. What was its marked price?

21. 120 is what percentage of 400?

22. If 15% of a number is 60, what is the number?

23. If a person saves 20% of their salary, which is INR 6,000, what is their total salary?

24. A smartphone costs INR 25,000 with a 12% discount. What’s the sale price?

25. A car was sold for INR 3,60,000 after a 10% decrease in price. What was the original price?

26. If 80% of a class passed an exam and 48 students passed, how many were in the class?

27. 40% of a class are girls. If there are 72 girls, how many students are in the class?

28. A discount of 15% on an item brings its price to INR 850. What was the original price?

29. The salary of an employee increased from INR 12,000 to INR 15,000. What was the percentage increase?

30. If the radius of a circle is 25 cm, what is its area? (Use π = 3.14)