UKCAT Tip 32: Put simply, a Cannot Tell statement requires more information than the passage

The third answer option the Verbal Reasoning subtest is ‘Cannot Tell’, or ‘Can’t Tell’. Such a response is given if you require more information to answer either ‘True’ or ‘False’.

Most often the question statement will deviate from the passage, referring to something not mentioned in the text. This is when you require more information to confirm ‘True’ or ‘False’.