GMAT Problem Solving

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Source: GWD

Level: 3

R, S, T, and U are points on a line, and U is the midpoint of line segment ST. If the lengths of line segments RS, RT, and ST are 20, 4, and 24, respectively. What is the length of line segment RU?

  • A 6
  • B 8
  • C 12
  • D 14
  • E 16

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