The Ray Tracer Challenge: various errata

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In these two tests (p222 and p223):

Scenario: A smooth triangle uses u/v to interpolate the normal
  When i ← intersection_with_uv(1, tri, 0.45, 0.25)

Scenario: Preparing the normal on a smooth triangle
  When i ← intersection_with_uv(1, tri, 0.45, 0.25)

The first parameter t should be qual to 2. The ray intersects the triangle at distance 2, according to my calculations. Could this be an error?

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