Solve the Problem $x$ Varies Inversely As $v$ , And $x=40$ When $v=4$ , Find

Multiple Choice

Solve the problem.
-If $x$ varies inversely as $v$ , and $x=40$ when $v=4$ , find $x$ when $v=32$ .

A) $x=20$
B) $x=8$
C) $x=5$
D) $x=16$