Sallys baked beans recipe calls for 5 pounds of sugar and 20 pounds of dried beans. how many pounds of sugar are needed for a recipe using just 1 pound of dried beans

5 pounds of sugar             0.25 pound of sugar
      =   
20 pounds of beans            1 pound of beans

Now... both are traveling in opposite direction
after some time "t", they cover altogether a distance of 65 miles
let's say, the one at 12mph cover a distance of "d",
thus
the other biker, cover the difference of that and 65, or 65-d
whatever "d" is

now, the time for both, is the exact same time,
since by the time they've covered 65 miles, let's say is
11:30am, is the same 11:30am for the first biker as well
as the second biker



now... do you see the substitution there?
so.. do that, and solve for "t"