Question

diferenţa a doua numere este 315 raportul dintre ele este 4 pe 7 află cele două numere

Answer 1

$b-a=315 \\\\ \frac{a}{b}=\frac{4}{7} \\\\\\ \frac{a}{4}=\frac{b}{7}=k \\\\ a=4k \\ b=7k \\\\ 7k-4k=315 \\\\ 3k=315 \\\\ k=315:3 \\\\ \underline{k=105} \\\\\\ a=4*105 \\\\ \boxed{a=420} \\\\\\ b=7*105 \\\\ \boxed{b=735}$