The sum of the 50 numbers is:

50 * 30 = 1500

If we discard 35 and 25, then the sum of the remaining 48 numbers is:

1500 – 35 – 25 = 1440

Therefore, the average of the remaining 48 numbers is:

1440 / 48 = 30

So the average of the remaining numbers is still 30.