Poziom B
b) a/b = 4/18 = 2/9
c) a/b = 14/35 = 2/5
d) a/b = 24/36 = 2/3
Poziom C
b)
2/3 x = 16 |· 3/2
x = 24
c)
7/10 x = 14 |· 10/7
x = 20
d)
4/9 x = 20 |· 9/4
x = 45