Determine the Constant of Variation for the Stated Condition $c$ Varies Directly as a and Inversely As

Multiple Choice

Determine the constant of variation for the stated condition.
- $c$ varies directly as a and inversely as $b$ , and $c = 5$ when $a = 60$ and $b = 25$ .

A) $\mathrm { k } = \frac { 25 } { 12 }$
B) $\mathrm { k } = \frac { 12 } { 25 }$
C) $\mathrm { k } = 25$
D) $\mathrm { k } = 5$ Find the variation equation for the variation statement.