A, B, C and D are integers and A + B + C = D. A is 20% of D and C is 40% of D. If A is increased by 50% and C is decreased by 50%, B's percentage of D changes by what %? Assume that D does not change, and that B changes to accommodate the changes in A and C.

# 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.