Question

Aflat.i raportul numerelor x si y, stiind ca 75% din x este cat 35% din y

Answer 1

$\frac{75}{100} \times x = \frac{35}{100} \times y$

$\frac{3}{4} \times x = \frac{7}{20} \times y$

$\frac{3x}{4} = \frac{7y}{20}$

$3x \times 20 = 7y \times 4$

$60x = 28y \: | \div 4y$

$\frac{15x}{y} = 7$

$15 \times \frac{x}{y} = 7 \: | \div 15$

$\frac{x}{y} = \frac{7}{15}$