Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

Mary says "The number I am thinking is divisible by 2 or it is divisible by 3". This statement is false if the number Mary is thinking of is

$\begin {array} {1 1} (A)\;6 & \quad (B)\;8 \\ (C)\;11 & \quad (D)\;15 \end {array}$

Can you answer this question?

1 Answer

0 votes
Ans : (C)
This sentence contains the word "or" (disjunction).
A disjunction is only false if BOTH conditions are false.
The only number that is not divisble by 2 and is not divisible by 3 is 11.


answered Jan 18, 2014 by thanvigandhi_1

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App