V+I+M=x mere
V=124m
I = V-35m
M=I+42m
Cate mere au cules in total cei trei copii?
a) prin doua operatii:
(124-35)+42=131
124+(124-35)+131=344 mere total
b)prin trei operatii:
124-35=89 mere Ioana
89+42=131 mere Miruna
124+89+131=344 mere total
R=>V=124m
I= 89m
M=131m