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Railways PYQCBT 1 2016

RRB NTPC · Question 46

The following questions are based on the information given below: All the 3200 students of a college in a city know at least one of the three languages English, Telugu and Hindi. 2400 know English, 1700 know Telugu, 800 know Hindi, 1000 know English and Telugu, 500 speak English and Hindi, 300 speak Telugu and Hindi and only 100 know all three languages. How many know only one of the three languages? A. 1600 B. 900 C. 300 D. 100

  1. D

  2. C

  3. A

  4. B

Show answer & explanation

Answer: (C) A

Explanation

Only English = 2400 − 1000 − 500 + 100 = 1000; only Telugu = 1700 − 1000 − 300 + 100 = 500; only Hindi = 800 − 500 − 300 + 100 = 100. Total knowing exactly one language = 1600.