Question

a) R$ 42,00 representam 5%
b) R$ 280,00 representam 8%
c) R$ 33,00 representam 5,5%
d) R$ 320,00 representam 1,25%

Answer 1

A) R$ 42,00 representam 5%

42 - 5%

x - 100%

5x = 42*100

5x = 4200

x = 4200/5

x = R$ 840,00

B) R$ 280,00 representam 8%

280 - 8%

x - 100%

8x = 280*100

8x = 28000

x = 28000/8

x = R$ 3.500,00

C) R$ 33,00 representam 5,5%

33 - 5,5%

x - 100%

5,5x = 33*100

5,5x = 3300

x = 3300/5,5

x = R$ 600,00

D) R$ 320,00 representam 1,25%

320 - 1,25%

x - 100%

1,25x = 320*100

1,25x = 32000

x = 32000/1,25

x = R$ 25.600,00