A mobile phone has been stolen. There are 3 suspects P, Q and R. They were questioned knowing that only one…
A mobile phone has been stolen. There are 3 suspects P, Q and R. They were questioned knowing that only one of them is guilty. Their responses are as follows:
P: I did not steal. Q stole it.
Q: R did not steal. I did not steal.
R: I did not steal. I do not know who did it.
Who stole the mobile phone?
P
Q
R
Cannot be concluded
Solution
Testing each suspect against the statements does not yield a unique consistent culprit, since the problem does not specify how many statements are true or false. Without that constraint, multiple scenarios remain possible, so the thief cannot be definitely concluded. The verified Set A key marks (d) Cannot be concluded.