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Railways PYQCBT 1 2016

RRB NTPC · Question 25

A human adult's entire digestive tract from mouth to anus is about ______ meters long. A. 8 B. 7 C. 10 D. 9

  1. B

  2. D

  3. C

  4. A

Show answer & explanation

Answer: (B) D

Explanation

The adult human digestive tract, from mouth through oesophagus, stomach, small and large intestine to the anus, is about 9 metres (roughly 30 feet) long. The small intestine alone accounts for about 6–7 m of it.