The average of 11 numbers is 25. If the average of 6 of these numbers is 24, then what is the average of the remaining 5 numbers?
- A25.6
- B25.2
- C26
- D26.2
Solution & Step-by-step Explanation
The total sum of all 11 numbers is:
Sum
11
=11×25=275
The total sum of 6 of these numbers is:
Sum
6
=6×24=144
The sum of the remaining 5 numbers is:
Sum
5
=Sum
11
−Sum
6
=275−144=131
The average of the remaining 5 numbers is:
Average
5
=
5
131
=26.2
Sum
11
=11×25=275
The total sum of 6 of these numbers is:
Sum
6
=6×24=144
The sum of the remaining 5 numbers is:
Sum
5
=Sum
11
−Sum
6
=275−144=131
The average of the remaining 5 numbers is:
Average
5
=
5
131
=26.2