The following three equations express the relationship between a, b, c and. d is what % of a?
2 a + b = 3 a
2 b + 3 c = 4 c
2 d + 3 b = c + 3 d
TJ Prep Problems
TJ Prep practice problems for our students and readers. The problems provide a very small sampling of what Optimal TJ Prep students work with.