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Techweblabs - SPHOORTHY ENGINEERING COLLEGE (09-09-2023)

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1. If the sum of two consecutive odd numbers is 36, what is the larger number?

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2. True or False: An equilateral triangle has all angles equal to 60 degrees.

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3. In a bag of marbles, 40% are red, 25% are blue, and the remaining are green. If there are 200 green marbles, how many marbles are in total?

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4. If 10 persons can complete a task in 12 days, how many days will 15 persons take to complete the same task?

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5. The binary number system is base 2, using only the digits 0 and 1.

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6. A boat can travel a distance of 45 km downstream in 3 hours. The speed of the stream is 5 km/h. What is the speed of the boat in still water?

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7. True or False: Every prime number is an odd number.

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8. A foreign key is used to establish a relationship between two tables in a database.

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9. Today is March 15, 2023. What day of the week will it be after 61 days?

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10. If APPLE is coded as BQQMF, what is the code for ORANGE?

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11. True or False: In a relational database, a one-to-many relationship is represented by placing a foreign key in the "one" side table.

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12. In a code language, "BREAD" is written as "CFBEF". How will "CHEER" be written in the same language?

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13. What are the differences between the "throw" and "throws" keywords in Java?

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14. A shopkeeper gives a discount of 20% on the marked price of an item. If the marked price is $250, what is the selling price?

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15. What is the output of the following Java code snippet?

int x = 10;

int y = x++ + ++x - x--;

System.out.println(y);

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16. If a train travels at a speed of 75 km/h, how long will it take to cover a distance of 900 km?

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17. The average of 5 numbers is 20. If one number is excluded, the average becomes 18. What is the excluded number?

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18. What is the difference between an abstract class and an interface in Java?

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19. What is the purpose of the `super`

keyword in Java?

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20. The average of 5 consecutive even numbers is 28. What is the largest number among these?

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21. In HTML, the `<div>`

element is used to define a container or a division of content.

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22. In database normalization, which normal form eliminates transitive dependencies?

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23. If the cost price of an item is $800 and it is sold at a profit of 25%, what is the selling price?

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24. If a car travels a distance of 480 kilometers in 8 hours, what is its average speed in kilometers per hour?

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25. If all cats are dogs, and all dogs are rabbits, which of the following statements is true?

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