Question

Numa fábrica de 30 operários 12 faltaram. Qual a taxa de operários presentes ?

Answer 1

30_______100%
18_______x

30x=1800
x=1800/30
x=60

Answer 2

i=30-12*100/30

i=18*100/30

i=1800/30

i=60

Resposta: Taxa de 60% presentes