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 1660 are infected, how manyworkersinhabit the colony? Options:
A) 1500
B) 2500
C) 2750
D) 3000
E) 3250
From two question we get wo equations:   (1) 0,3s + 0,14w = 1660   (2) s + w = 7000   From (2) we get w=7000-s   In (1) 0,3s + 980-0,14s= 1660   0,16s=680   68000:16= 4250 =s   In (2) 4250 + w = 7000   w= 2750 2750
<result>C</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 1660 are infected, how manyworkersinhabit the colony?