From a murder event in the planet a the following informatio

From a murder event in the planet a the following information are available. If all information are true who was the murderer? If Zinto is murderer then the murder occurred on the planet university campus If Hinto is murderer then the murder occurred during day light If the murder occurred on the planet university campus then it occurred in night The murder didn\'t happen in night. Zinto is murderer or Hinto is murderer but not both

Solution

According to d), murder didnot happen in night.

According to b), if murder occured on the planet univerity campus, then it occured in night.

Negating b, we get:

If the murder didnot occur in night, then the murder did not occur on the planet university campus.

Now, according to a), if zinto is murderer then the murder occured on the planet university campus.

Negating a) , we get:

If the murder didnot occur on the planet university campus, then zinto is not the murder.

So, it implies,

murder didnot happen in night => murder didnot occur on the planet university campus => zinto is not the murder.

Now either zinto or hinto was the murderer and not both.

Since, zinto is not the murderer, so hinto must be the murderer.

So, the true murderer is hinto.