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Q1. What number should replace the question mark: 1, 4, 10, 19, 31, ?
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Q2. Two numbers are 20% and 30% more than a third number. By what percentage is the second number greater than the first number?
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Q3. A shopkeeper marks the price of his goods 25% above the cost price and then offers a discount of 10%. What is his profit percentage?
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Q4. Which of the following represents the number 'twenty-three million, one hundred thousand, and fifty-two'?
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Q5. How many composite numbers between 1 and 50 have an odd number of divisors?
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Q6. A shopkeeper sells a watch for Rs. 500 at a loss of 10%. What is the cost price of the watch?
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Q7. Convert the decimal number 75 to binary. Which is the correct representation?
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Q8. A merchant sells two machines for Rs. 5000 each. On one, he gains 25% and on the other, he loses 25%. What is his overall profit or loss percentage?
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Q9. Which is the 11th triangular number?
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Q10. If two triangles are congruent, then their corresponding:
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Q11. Which of the following is a triangular number?
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Q12. A dealer marks up the price of a product by 30% and then offers a discount of 20%. What is his net profit percentage?
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Q13. A person walks 5 km east, then 3 km west, then 7 km east. What is the total distance covered?
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Q14. What is 10% of 50?
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Q15. A man travels 12 km at a speed of 4 km/h and then another 16 km at a speed of 8 km/h. What is his average speed for the entire journey?
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Q16. A bus covers a distance of 120 km in 4 hours. What is its average speed?
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Q17. A merchant buys a fan for Rs. 1200 and sells it at a profit of 15%. What is the selling price?
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Q18. A train passes a signal post in 8 seconds and a platform of length 240 meters in 20 seconds. The speed of the train is:
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Q19. The selling price of 5 articles is equal to the cost price of 6 articles. What is the profit percentage?
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Q20. A boat moves downstream at 22 km/hr and upstream at 18 km/hr. What is the time taken to travel 90 km downstream?
