Question

Qual o valor de:
A) 20% de 480
B) 30% de 500

Answer 1

 Vou utilizar a regra de três simples:

20% de 480

480---------------------------------100%
x-------------------------------------20%

100x=480×20
100x=9600
x=9600/100→ x=96
 
30% de 500

500--------------------------------------------100%
x------------------------------------------------30%
x100=500×30
x100=15000
x=15000/100→x=150