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Railways PYQCBT 1 2016

RRB NTPC · Question 12

If the ratio of two supplementary angles is 13 : 5, then find the difference between the two. A. 60° B. 70° C. 80° D. 120°

  1. C

  2. B

  3. D

  4. A

Show answer & explanation

Answer: (A) C

Explanation

Supplementary angles add up to 180°. 13 : 5 means 18 parts = 180°, so 1 part = 10°: the angles are 130° and 50°, and their difference is 80°.