It is known that a and b are inversely proportional, when a=57, b=(2/19). Then when a=how much, b=3.
已知a和b成反比例，当a=57时b=(2/19)．那么当a=多少时，b=3．
<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<result>2</result>