Question

$\text{If}\frac{a}{5}=\frac{b}{3}=\frac{c}{18}\text{then}\frac{a+b+c}{c}\text{is}$

• A. $\frac{9}{13}$
• B. $\frac{10}{13}$
• C. $\frac{13}{9}$
• D. $\frac{14}{5}$
• E. None of these

Answer 1

The correct option is C $\frac{13}{9}$

$\frac{a}{5}=\frac{b}{3}=\frac{c}{18}=ka=5k,b=3k,c=18k\frac{a+b+c}{c}=\frac{5k+3k+18k}{18k}=\frac{26}{18}=\frac{13}{9}$