Question

Usando a regra de três, calcule.

a) 18% de 2700=
b) 16% de 3400=
c) 2,5% de 300=

Answer 1

a)

100% ------- 2700
18% -------- x

100x=2700×18
100x=48600
x=48600/100
x=486


b)

100% ------ 3400
16% ------- x

100x=3400×16
100x=54400
x=54400/100
x=544

c)

100% ------- 300
2,5% -------- x

100x=300×2,5
100x=750
x=750/100
x=7,5


Bons estudos :p