The average of 19 numbers is 22.8. The average of the first ten number is 18.4 and that of the last ten numbers is 28.6. If the 10th number is excluded from the given numbers, then what is the average of the remaining numbers?

The average of 19 numbers is 22.8. The average of the first ten number

1.	The average of 19 numbers is 22.8. The average of the first ten number is 18.4 and that of the last ten numbers is 28.6. If the 10th number is excluded from the given numbers, then what is the average of the remaining numbers?
A.	21
B.	23
C.	22
D.	20
Answer» D. 20