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.

A Difficult TJ Prep/Blair Prep Problem. Target Time 40-60 seconds.

Jack and Jill have identical candles. Each candle burns completely in 6
Hrs at a uniform rate. Jack lit his candle at 6 PM while Jill lit her candle at 7 PM. At what time
Jill's candle will be exactly 50% taller than Jack's candle? You can solve it by making an equation or by making a table; try both ways!