ACT math is all about speed and accuracy, and the fastest and most certain way to answer this question correctly is to draw out a little chart. Let's say day 0 is when Bridget last had lacrosse and softball on the same day. If she has softball every 3 days and lacrosse every 6 days, then the diagram below shows the next time she will have both on the same day. 6 days later is the next time she'd have both sports on the same day.
