Q1 · medium · PYQ 2025
The average of 15 numbers is 28. If each number is doubled and then 5 is added to each, what will be the new average?
- 61
- 64
- 62
- 58
Q2 · medium · PYQ 2025
A school had 120 students with an average age of 20 years. Later, a new batch of students joined. After their inclusion, the average age dropped to 19.5 years, even though the newcomers had an average age of 18 years. Find the number of students in the new batch.
- 35
- 30
- 40
- 45
Q3 · medium · PYQ 2020
The average age of 16 students in a college is 20. Out of them, the average age of 5 students is 20 and the average age of the other 10 students is 20.4. Find the age of the 16th student.
- 24
- 22
- 20
- 16
Q4 · medium · PYQ 2023
The average age of 5 children of a family is 15 years. Average age of children together with their father and mother is 25 years. If the father is older than the mother by 4 years, then find the age of mother (in years).
- 48
- 52
- 46
- 44
Q5 · medium · PYQ 2025
What is the average of the following numbers: 12, 18, 24, 30, 36?
- 24
- 27
- 25
- 26