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Q1. If a number is increased by 30%, the result is 260. What is the original number?
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Q2. What is 10 base 8 multiplied by 5 base 8?
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Q3. The present age of a father is 3 years more than 3 times the age of his son. 3 years hence, the father's age will be 10 years more than twice the age of his son. What is the present age of the son?
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Q4. If sin(x) = cos(x), what is x in degrees (for acute angle)?
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Q5. Two trains start from the same station at the same time in the same direction. The first train travels at 50 km/hr and the second train travels at 70 km/hr. If the first train is 100 km ahead of the second train after some time, what is the time elapsed?
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Q6. The average age of a father and his son is 27 years. If the father's age is 3 years more than three times the son's age, what is the father's present age?
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Q7. The number 6^n - 2^n is always divisible by which of the following for any positive integer n?
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Q8. A decrease of 20% in the price of an article enables a person to buy 10 more articles for Rs. 100. What is the original price of one article?
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Q9. A die is rolled. What is the probability of getting a number greater than 4?
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Q10. A number is multiplied by 4/5. If the result is 32, what is the number?
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Q11. If 2 x 3 = 8, 3 x 4 = 15, 4 x 5 = 24, then 5 x 6 = ?
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Q12. If a number is increased by 20% and then decreased by 20%, what is the net percentage change?
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Q13. Convert the decimal number 750 to its hexadecimal representation.
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Q14. If two lines are parallel and are intersected by a transversal, the consecutive interior angles are:
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Q15. Find the difference between 875 and 432.
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Q16. A number is increased by 10% and then decreased by 10%. By what percentage is the final number different from the original number?
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Q17. What is the next number after 9 in the decimal system?
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Q18. What is the remainder when $x^3 - 27$ is divided by $x - 3$?
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Q19. The area of a circle is 154 sq cm. What is its circumference?
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Q20. What is the remainder when $x^2 + 4x + 4$ is divided by $x + 2$?
