Question : If the mean of two numbers is 12, and the difference between the two numbers is 6, find the two numbers.

Option 1: 2 and 22

Option 2: 14 and 10

Option 3: 15 and 9

Option 4: 3 and 24

Question : What will be the average of all the even numbers between 5 and 29?

Option 1: 14

Option 2: 19

Option 3: 22

Option 4: 17

Question : The average of prime numbers between 1 and 20 is:

Option 1: $9$

Option 2: $9\frac{5}{8}$

Option 3: $10\frac{1}{8}$

Option 4: $8$

Question : P₁ is the average of all prime numbers below 12 and P2 is the average of all prime numbers between 12 and 30. What is the value of 5P_{1 –} P₂?

Option 1: 7.8

Option 2: 8.6

Option 3: 9.8

Option 4: 7.5

Question : What is the average of prime numbers between 12 and 25?

Option 1: 20

Option 2: 24

Option 3: 23

Option 4: 18