6.5+6.5+6.5+3.5=23

4.5+4.5+3.5+3.5+3.5+3.5=23

Let 3.5 be a.

4.5 is B.

6.5 is C.

Then a+3c = 23.

A gen

4A+2B=23

B heel

If a 23 wastes 0.5,

There is 5b = 22.5

C root

2A+2B+C=22.5

D root

If $23 is wasted 1.

. . . . .

E root f heel

After the analysis, try to take the least waste.

Then let the function z = 0.5c+0.5d+e+f e+f.

Find the function z in the condition 200A.

260B

200C is the minimum value under rounding conditions.