41)a= numarul, b=produsul
10a=b +56
(b+56)/6=16 => b+56=16*6 => b+56=96 => b=40
10a=40 => a=4
42) 239*8=1912
48/6=8
1912-8=1904
43)2l+2L=54
L=2l
=> 2l+2*2l=54 => 2l+4l=54 => 6l=54 => l=9 => L=2*9 => L=18
44)400 litri vin
1/5*400=80 litri vinde
400-80=320litri vin ramaine
320/10=32 vase sunt necesare
45)25 trantori
25*12=300 albine lucratoare
300+25=325 in total
