Question

Halla el 30% de 40% de 60 % de 4000

Answer 1

Respuesta:

288

Explicación paso a paso:

$\frac{3}{10}\cdot \frac{2}{5}\cdot \frac{3}{5}\cdot \:4000$

$\frac{3}{10}\cdot \frac{2}{5}\cdot \frac{3}{5}\cdot \frac{4000}{1}$

$\frac{3\cdot \:2\cdot \:3\cdot \:4000}{10\cdot \:5\cdot \:5\cdot \:1}$

$\frac{3\cdot \:3\cdot \:4000}{5\cdot \:5\cdot \:5}$

$\frac{3\cdot \:3\cdot \:5\cdot \:160}{5\cdot \:5}$

$\frac{3\cdot \:3\cdot \:160}{5}$

$3\cdot \:3\cdot \:32$$= 288$

Answer 2

Respuesta:

del 30%=1.200

$\begin{aligned}4,000-30\%&=x\\&\downarrow\\x&=4,000-\frac{4,000\times30}{100}\ \\ &=4,000-\frac{120,000}{100}\\&=4,000-1,200\\&=\bold{2,800}\end{aligned}$

del 40%=1.600

$\begin{aligned}4,000-40\%&=x\\&\downarrow\\x&=4,000-\frac{4,000\times40}{100}\\&=4,000-\frac{160,000}{100}\\&=4,000-1,600\\&=\bold{2,400}\end{aligned}$

del 60%=2.400

$\begin{aligned}4,000-60\%&=x\\&\downarrow\\x&=4,000-\frac{4,000\times60}{100}\\&=4,000-\frac{240,000}{100}\\&=4,000-2,400\\&=\bold{1,600}\end{aligned}$

espero ayudar ❤