Question

Calcule as seguujntes porcentagens 10% de 200 20% de 400 25% de 160 12% de 350

Answer 1

Resposta:

$10 \: \% \: 200 = 20$

$20 \: \% \: 400 = 80$

$25\% \: 160 = 40$

$12\% \: 350 = 42$

Explicação passo-a-passo:

$10 \% \: 200 = \\ 10\% = \frac{1}{10} \\ \\ \frac{1}{10} \times 200 = \\ \\ \frac{200}{10} = \\ \\ 20$

$20 \% \: 400 = \\ 20\% = \frac{1}{5} \\ \\ \frac{1}{5} \times 400 = \\ \\ \frac{400}{5} = \\ \\ 80$

$25\% \: 160 = \\ 25\% = \frac{1}{4} \\ \\ \frac{1}{4} \times 160 = \\ \\ 40$

$12\% \: 350 = \\ 12\% = \frac{3}{25} \\ \\ \frac{3}{25} \times 350 = \\ \\ \frac{3 \times 350}{25} = \\ \\ \frac{1050}{25} = \\ \\ 42$