The New Jersey and Virginia Plans of the 1780s were each meant to provide a formula to choose representatives to the legislature being created during the Constitutional Convention. The Virginia Plan called for representatives to be allotted in proportion to the state's population while the New Jersey Plan would have the number of representatives be the same for each state regardless of population.
The formula for volume of a cylinder is V=

r^2h, where V= volume, r=radius, and h=height. So we plug in your numbers and get (3.14)(1.5)^2(4), which equals 28.26 cubic feet. We have a bucket that holds 0.34 cubic feet, so we need to fill it 28.26/0.34 times, which equals about 83.118 times. If she can fill the bucket five times in three minutes, we set up a ratio 3/5 = 83.118/x so 5x=249.3529, and x=49.87 minutes.