Question

Calcule a porcentagem
A)20% de 250
B)15% de 500
C)12% de 150
D)20% de 850
E)7,5% de 409

Answer 1

a=250%×20=50
b= 500%×15=75
c=150%×12=18
d=850%×20=170
e= 409%×7.5=30.67

Answer 2

a) 100% = 250.
20% = x

100x = 5000
x = 5000/100

x = 50

b) 100% = 500
15% = x

100x = 7500
x = 7500/100

x = 75

c) 100% = 150
12% = x

100x = 1800
x = 1800/100

x= 18

d) 100% = 850
20% = x

100x = 17000
x = 17000/100

x = 170

e) 100% = 409
7,5% = x

100x = 3067,5
x = 3067,5/100

x = 30,675