10 * *, Zhang Hua and Dong Li each got 208 points, and Zhang Hua got 64 points, so Zhang Huade (208+64)/2= 136, Dong Lide 136-64=72.

Deduct 12 points for the wrong one, and add 20 points for the wrong one.

Let Zhang Hua be on the X orbit, then 20x-12 (10-x) =136, and x=8.

If Dong Li is right on y, then 20y- 12( 10-y)=72 and y=6.