Question 4 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.
Class X1 - Maths -Mathematical Reasoning Page 335
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concept : if one of the statement is true , then ' or ' is exclusive and if both of the statement are true , then ' or ' are inclusive .
(i) Sun rises or moon sets
when sun rises , the moon sets . on of the happening will take place . hence, ' or ' is exclusive.
(ii) To apply for driving license either a ration card or a passport or both can be used .
here both statements are true. hence, 'or' is inclusive .
(iii) All integers are positive or negative .
An integer can't be both positive or negative at a time . it is clear that one of the statement is true . hence, 'or' is exclusive .
(i) Sun rises or moon sets
when sun rises , the moon sets . on of the happening will take place . hence, ' or ' is exclusive.
(ii) To apply for driving license either a ration card or a passport or both can be used .
here both statements are true. hence, 'or' is inclusive .
(iii) All integers are positive or negative .
An integer can't be both positive or negative at a time . it is clear that one of the statement is true . hence, 'or' is exclusive .
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