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Railways PYQCBT 2 2017

RRB NTPC · Question 23

Halley's comet appears once in approximately how many years?

  1. 84

  2. 76

  3. 24

  4. 48

Show answer & explanation

Answer: (B) 76

Explanation

Halley's Comet returns about every 75–76 years. It last appeared in 1986 and is expected again in 2061.