Question : Find the average of the following sets of numbers.
693, 456, 876, 532, 934, 691, 596, 398, 682

Option 1: 550.50

Option 2: 750.80

Option 3: 650.89

Option 4: 725.90

Question : The average of 8 numbers is 18. If one of the numbers is excluded, the average becomes 20. Find the excluded number.

Option 1: 6

Option 2: 10

Option 3: 8

Option 4: 4

Question : The average of two numbers is 8, and the average of the other three numbers is 3. The average of the five numbers is:

Option 1: 2

Option 2: 3

Option 3: 5

Option 4: 6

Question : The average of two numbers is 8, and the average of the other three numbers is 3. The average of the five numbers is:

Option 1: 2

Option 2: 3

Option 3: 5

Option 4: 6

Question : Directions: Select the set in which the numbers are not related in the same way as the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits.)
(4, 5, 82)
(6, 11, 314)

Option 1: (7, 10, 298)

Option 2: (13, 15, 788)

Option 3: (11, 9, 560)

Option 4: (9, 8, 290)

Question : If the average of $s$ numbers is $r^4$ and the average of $r$ numbers is $s^4$, then find the average of all $r+s$ numbers.

Option 1: $r s\left(r^2+s^2-r s\right)$

Option 2: $rs$

Option 3: ${r}^2+s^2$

Option 4: $rs\left(r^2+s^2\right)$