Question

me ajudem com essa pergunta

Answer 1

Chamando terrenos 1 = a , 2 = b   e  c = d
1 + 2 + 3  = 120 ou
a + b + c  = 120
a/30 = b/45 = c/75 = ( a + b + c)/ ( 30 + 45 + 75 )  = 120 /150  = 12/15=4/5
a/30  = 4/5
5a = 30 * 4
5a = 120
a = 120/5 =24 m *** terreno 1 ****

b/45 = 4/5
5b = 45 * 4
5b = 180
b = 180/5 = 36 m**** terreno 2 ***

c/75 = 4/5
5c = 75 * 4
5c = 300
c = 300/5 = 60 m **** terreno 3 ***