Solve the murder mystery: (5) Robby, Charlie, amber and Sarah are friends. The planned a trip on the weekend. They decided that if they wake up early in the morning then they will go to the lake. If they are not up by 9:00 am in the morning, then they will go for hiking. They were not up till 9:00 am. Sarah is afraid of heights. If they go for hiking, then Sarah will not go with them. Amber will go only if Sarah goes. If amber did not go then Robby pushed Charlie off the cliff. If Robby did not go then amber pushed Charlie off the cliff. Use inference rules to identify the killer
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Answer:
By reviewing all the points the killer is The Robby. This is because Amber will go to hill if Sarah goes but that day Sarah didn't went so , both Sarah and Amber cancelled. Then the both Robby and Charlie are left and then the Robby pushed Charlie off the cliff
This is the answer⬆️