NCERT Class XI Mathematics - Mathematical Reasoning - Solutions
© examsnet.com
Question : 9
Total: 25
State whether the “Or” used in the following statements is “exclusive” or “inclusive”. Give reasons for your answer.
(i) Sun rises or Moon sets.
(ii) To apply for a driving licence, you should have a ration card or a passport.
(iii) All integers are positive or negative.
(i) Sun rises or Moon sets.
(ii) To apply for a driving licence, you should have a ration card or a passport.
(iii) All integers are positive or negative.
Solution:
(i) This statement makes use of exclusive “or”. Since when sun rises, moon does not set during day-time.
(ii) This statement makes use of inclusive ‘or’. Since you can apply for a driving licence even if you have a ration card as well as a passport.
(iii) This statement makes use of exclusive ‘or’. Since an integer is either positive or negative, it cannot be both.
(ii) This statement makes use of inclusive ‘or’. Since you can apply for a driving licence even if you have a ration card as well as a passport.
(iii) This statement makes use of exclusive ‘or’. Since an integer is either positive or negative, it cannot be both.
© examsnet.com
Go to Question: