What is the the second quantity, if

a) the first quantity of the ratio is [[$ 30 $]] and the value of the ratio is [[$ 6 $]]?


The second quantity is .

b) the first quantity of the ratio is [[$ 11 $]] and the value of the ratio is [[$ 11 $]]



The second quantity is .

c) the first quantity of the ratio is [[$ 12 $]] and the value of the ratio is [[$ \displaystyle\frac {1} {4} $]]



The second quantity is .

d) the first quantity of the ratio is [[$ 2 $]] and the value of the ratio is [[$ 10 $]]?



The second quantity is .