Question

a) 25% de 300
b. 40% de 200
C) 20% de 600
d) 32% de 800
​

Answer 1

Resposta:

a)

$25\% \times \: 300 = \\ \\ \frac{25}{1 \red{00}} \times 3 \red{00} = \\ \\ 25 \times 3 = \\ \\ \Large \boxed{ \: \green{ \bf \: 75}}$

b)

$40\% \times 200 = \\ \\ \frac{40}{1 \red{00} } \times 2 \red{00} = \\ \\ 40 \times 2 = \\ \\ \Large \boxed{ \green{ \bf \: 80}}$

c)

$20\% \times 600 = \\ \\ 600 - - - - 100\% \\ x - - - - - 20\% \\ \\ 100x = 600 \times 20 \\ \\ 100x = 12000 \\ \\ x = \frac{120 \red{00}}{1 \red{00} } \\ \\ \Large \: \boxed{x \: = \green{ \bf \: 1 20}}$

d)

$32\% \times 800 = \\ \\ \frac{32}{1 \red{00}} \times 8 \red{00 }= \\ \\ 32 \times 8 = \\ \\ \Large \boxed{ \green{ \bf \: 25 6}} \\ \\ \Large \boxed{ \underline{ \blue{ \bf \: Bons \: Estudos!}}}$