Question

1) calcule as seguintes porcentagens

resposta passo a passo

A)20% de 300

B)30% de 1000

C)25% de 400

D)40% de 500
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Answer 1

Resposta:

a)

300-100%

x-20%

100x=6.000

x=60

b)

1000-100%

x-30%

100x=30.000

x=300

c)

400-100%

x-25%

100x=10.000

x=100

d)

500-100%

x-40%

100x=20.000

x=200

Answer 2

a) 60

b) 300

c) 100

d) 200

a) 20/100 × 300 20×3=60

b) 30/100 × 1000 30×10=300

c) 25/100 × 400 25×4=100

d) 40/100 × 500 40×5=200