in 100 g de coacaza neagra se contin 250mg de vitamina C cate g de vitamina C se contin in 2 kg de coacaza neagra?

Răspuns :

2 kg=2000 g
100g coacăze ................................................250mg de vitamina C
2000 g coacăze ............................................. x mg de vitamina C
100/2000=250/x
x=(2000×250):100=5000 mg de vitamina C