NextMockSearch exams, e.g. SSC CGL, UPPSC, Lekhpal
Railways PYQCBT 1 2016

RRB NTPC · Question 77

If two supplementary angles are in the ratio of 4 : 5, find the ratio of the square of the first angle to the square of the second angle. A. 16 : 25 B. 64 : 125 C. 100 : 125 D. 25 : 16

  1. D

  2. B

  3. C

  4. A

Show answer & explanation

Answer: (D) A

Explanation

The angles are in the ratio 4 : 5, so their squares are in the ratio 16 : 25 (the angles are 80° and 100°).