Their score ratio is 5:4, and the total score is 5+4 = 9, accounting for 4/9 of Wang Zhan Jr. and 5/9 of Xiao Li.

Xiao Li is more than Xiao Wang 1/9.

Then the score ratio of Xiao Li and Xiao Wang is 5:7, the total score is 5+7 = 12, Xiao Li accounts for 5/ 12, and Xiao Wangzhan accounts for 7/ 12.

Xiao Wang is 2/ 12 more than Xiao Li, which is 1/6.

The total score is unchanged, Xiao Li -25 is-1/9, and Xiao Wang +25 is+1/6.

A change of 25+25 = 50 points means a change of1/9+1/6 = 5/18 of the total score.

50 divided by 5/ 18 = 180 is the total score.

Xiao Wangben 180x4/9=80.

Xiao Liben 180-80= 100.

Calculation process:

4+5=9

5/9-4/9= 1/9

5+7= 12

7/ 12-5/ 12= 1/6

1/9+ 1/6=5/ 18

25+25 = 50 (point)

50 ÷ 5/ 18 = 180 (point) ... Total score

180x4/9=80 (points) ...

180-80 = 100 (points) ... Xiao Li originally