mendel - 15
tuzin - 12
a)
4 mendle i 2 tuziny
[tex]4 \times 15 + 2 \times 12 = 60 + 24 = \boxed{84}[/tex]
b)
5 tuzinów i 1 mendel
[tex]5 \times 12 + 15 = 60 + 15 = \boxed{ 75}[/tex]
c)
3 mendle i 3 tuziny
[tex]3 \times 15 + 3 \times 12 = 45 + 36 = \boxed{81}[/tex]
