I guess you mean the total of all kicked soccer balls...
In that case: total 20 soccer balls
10 - 25 yards each is 250 yd
10 - 30 yards each is 300 yd
We have a total of 550 yd
550 yd is 3 times 550 yd = 1650 feets
1650 feets is 502,92 meters
Because 1 feet is 0,3048 m
So the answers are:
20 balls are kicked with a total of:
550 yd
1650 ft
502,92 m