In 'Kavva-Kate' Island, there are two of persons truth - tellers - who always speak truth and liars - who always liw. One day, a stranger asked four persons P, Q, R, S What is the capital city of Kavva-Kate ?'' The r replies are as follows :
P: Shapur is the capital city.
Q: Monibal is not the capital city.
R: Shapur is the capital city.
S: Shapur is not the capital city.
If it is known that only one of them is a liar, then which of the following is the capital city of kavva-kate ?

Options

A. Shapur
B. Monibal
C. Either (A) or (B)
D. Date Inconsistent

Answer

A

Explanation

By observation, P and R made same statement as only one of them is a liar, both P and R must be true = S is a liar and Q must be a truth telller.
`:.` the capital city of Kavva-Kate is Shapur.