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Railways PYQCBT 1 2016

RRB NTPC · Question 18

A kite is flying at a height of 50 m. If the length of the string is 100 m then the inclination of the string to the horizontal ground in degree measures is: A. 90 B. 45 C. 60 D. 30

  1. B

  2. C

  3. D

  4. A

Show answer & explanation

Answer: (C) D

Explanation

The string is the hypotenuse of a right triangle whose height is 50 m. sin θ = 50/100 = 1/2, so θ = 30°.