濃度の問題 食塩の重さ(g) 100 濃度(%) 濃度の問題の解き方 ①連立

(g)
(g)
)
10%
4%
=
(%)
100
6%
5%
500g
g
1.210g
.240g
.270g
.300g
.330g
2%
100g 3%
4%
5%
1.230g
2.240g
3.250g
4.260g
5.270g
200%
400g 5%
3%
300g