The graph shows the value of two different investments, Investment A (solid line) and Investment B (dashed line), over $t$ years.
Investment A starts at $(0,100)$ and increases linearly, passing through $(5,200)$.
Investment B starts at $(0,50)$ and increases linearly, passing through $(5,250)$.

According to the graph, approximately how many years will it take for the value of Investment B to exceed the value of Investment A by $100?$