A mixer is filledwith a 80 kg of aconfectionary mixture that has a solids content of 12% by mass. 79 kg of mixture are emptied from the tank after mixingis complete. 10 kg of pure water is added to the mixer to clean it. Most of the water, which now contains some additional massfrom the leftover confectionary mixture,is drained from the mixerand exits with a solids content of 0.5%and total mass of 10.5 kg. A small amount of the water and confectionary mixture solution coats the interior of the mixer and remains in the mixer after draining. What is concentration of solids in the solution thatremainsin the mixer(expressed as % by mass)?