TJ Prep Problems

TJ test prep practice problems  for our students and readers. The problems provide a very small sampling of what Optimal TJ Prep students work with.

TJ Prep- An Easy Mixture Problem. Target Time 15 seconds.

Container A has 6 Kg solution of 2% sodium bicarbonate (baking soda) and container B has 12 Kg solution of 6% sodium bicarbonate. If you pour the contents of both containers in to a sufficiently large container, the mixture will contain what % sodium bicarbonate?