Question

exercitiul 19 va rog frumos

Answer 1

a=suma Horia
b=suma Marian
a+b=210
a-a/6=2(b+a/6)
5a/6=2b+2a/6
3a/6=2b
a/2=2b
a=4b
b=210-a
a=4(210-a)
a=840-4a
5a=840
a=168 lei Horia
b=210-168=42 lei Marian

Answer 2

pp horia are 6 lei
acum Horia ii da o sesime lui Marian si deci 6x-x=5x,Marian are 1/2 din aceasta suma deci are 5x/2
6x+3x/2=210,15x=420,x=28
horia are 6*28=168lei
marian 210-168=42lei