pliss jawab pake cara Kalo mau difollow

%Jagung = 100%-80% = 20%
Jagung = 100 x 100/10 x 20/100
             = 1000 x 20/100
             = 200 ton

ubi = 90°/360° x 100% = 25%
jagung = 100% -( 10%+45%+25%)=20%
jagung = (20% ÷ 10%)×100= 2×100=200