The average age of a father, mother, and their daughter 4 years ago was 30 years, and that of the mother and daughter 6 years ago was 25 years. What is the present age of the father?

In the first 12 overs of a cricket match, the run rate was 5.5. What should be the run rate in the remaining 38 overs to reach the target of 300 runs?

A baker has sales of Rs. 7800, Rs. 8200, Rs. 7900, Rs. 8600, and Rs. 8100 for 5 consecutive months. How much sale must he have in the sixth month to achieve an average sale of Rs. 8000?

A student's score was incorrectly recorded as 75 instead of 65. Because of this error, the class average increased by 0.4 marks. What is the total number of students in the class?

A grocery store purchases flour at Rs. 12, Rs. 15, and Rs. 18 per kilogram in three consecutive months. If the store spends Rs. 6000 each month, what is the average cost per kilogram of flour after the three months?

If the average score of four groups of 30, 40, 35, and 50 students is 70, 75, 80, and 65 respectively, what is the overall average score of all the students combined?

1. Cable TV network is an example of:

2. Which of the following is not a built-in exception in Python?

3. Which function is used to count the number of values in the specified column ignoring null values?

4. ____ is a unique address that can be used to uniquely identify each node in a network.

5. Write the Python statement to open a text file "notes.txt" in both read and write mode.

10. Which of the following functions returns an integer that specifies the current position of the file object in the file?

11. The number of tuples in a relation is called:

12. ____ is a useful technique that helps in capturing runtime errors and handling them so as to avoid the program getting terminated abruptly.

13. How to remove the primary key constraint from the table? Syntax: ALTER table table_name ____ primary key:

14. In DBMS, the file system suffers from:
* A. Data Dependence
* B. Data Redundancy * C. Data Isolation * D. Data Inconsistency Choose the most appropriate answer:

15. In SQL, to increase the salary by 10% of employees from the Employee Table, select the correct query.

Which of the following sorting algorithms is known for its efficiency in average and worst-case scenarios with a time complexity of O(n log n)?

22. In object-oriented programming, the mechanism of deriving a new class from an old one is called:

23. Which SQL statement is used to retrieve data from a database?