Răspunsuri

2014-11-05T10:38:16+02:00
F + B = 27

F = ( 100 + 25 )% x B
F = 125/ 100  x B

125/100 x B + B = 27
125/100 x B + 100/100 x B = 27
( 125 + 100 )/100 x B = 27
225/100 x B = 27
B = (27 x 100 ) : 225
B = 2700 : 225
B = 12

F = 125/100 x 12
F = ( 125 x 12 ) : 100
F = 1500 : 100
F = 15

R :    12 baieti si 15 fete
V :     12 + 15 = 27