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Railways PYQCBT 1 2020

RRB NTPC · Question 57

The angles of a triangle are 2x°, (3x - 8°) and (5x - 12°). The greatest angle of the triangle is:

  1. 40°

  2. 112°

  3. 118°

  4. 88°

Show answer & explanation

Answer: (D) 88°

Explanation

2x + (3x − 8) + (5x − 12) = 180, so 10x = 200 and x = 20. The angles are 40°, 52° and 88°; the greatest is 88°.