A disease has infected an ant colony that consists ofworkersandsoldiers: 30% of the soldiers and 14% of theworkerswere infected. If that colony is inhabited by 7000 ants, out of which 1540 are infected, how manyworkersinhabit the colony?  Choose the correct choice.
A) 1500  B) 2500  C) 2750  D) 3000  E) 3500
From two question we get wo equations:   (1) 0,3s + 0,14w = 1540   (2) s + w = 7000   From (2) we get w=7000-s   In (1) 0,3s + 980-0,14s= 1540   0,16s=560   56000:16= 3500 =s   In (2) 3500 + w = 7000   w= 3500 3500
<result>E</result>
A disease has infected an ant colony that consists ofworkersandsoldiers: 30% of the soldiers and 14% of theworkerswere infected. If that colony is inhabited by 7000 ants, out of which 1540 are infected, how manyworkersinhabit the colony?