- Consider two tanks, labeled tank A and tank B for reference. Tank A contains 100 gal of solutionin which is dissolved 20 lb of salt. Tank B contains 200 gal of solution in which is dissolved 40 lb ofsalt. Pure water flows into tank A at a rate of 5 gal/s. There is a drain at the bottom of tank A. Thesolution leaves tank A via this drain at a rate of 5 gal/s and flows immediately into tank B at thesame rate. A drain at the bottom of tank B allows the solution to leave tank B at a rate of 2.5 gal/s.What is the salt content in tank B at the precise moment that tank B contains 250 gal of solution?You should show all your work and obtain an analytic solution to the IVP without the use of Maple,but feel free to check your answer using Maple.