Question

Se (2N)% de K é igual a N, então o valor de K é:

A) 10
B) 20
C) 48
D) 50




​

Answer 1

Resposta:

D) 50

Explicação:

K×(2N)% = N

50×(2×25)% = 25

50×50% = 25

50÷2 = 25

25 = 25

Answer 2

$\large\boxed{\begin{array}{l} \sf \dfrac{2N}{100} \cdot K =N \\ \\ \sf K = \dfrac{\backslash\!\!\! N \cdot100}{2\backslash\!\!\!N} \therefore K = 50 \\\huge\boxed{ \boxed{ \boxed{ \boxed{ \sf \dagger \red{ \maltese}~ \blue{alternativa~D}}}}} \end{array}}$