Question

If $\frac{-9}{5}=\frac{a}{20}=\frac{27}{b}=\frac{-45}{c}$, then values of a, b and c respectively are __________.

• A. $-15,25,-36$
• B. $-36,-15,25$
• C. $25,-36,-15$
• D. $-15,-36,25$

Answer 1

The correct option is B $-36,-15,25$

$\frac{-9}{5}=\frac{a}{20}=\frac{27}{b}=\frac{-45}{c}$

a=$\frac{-9\times 20}{5}=-36$

b=$\frac{5\times 27}{-9}=-15$

c=$\frac{45\times 5}{-9}=25$

Hence the correct answer is option B.