T1W5 TS Q40 – Selective High School

All fings are bangs. Some bangs are doinks. No doinks are fings.

Using the information in the box, which statement must be true?

If I am a bang, then I must be a doink. If I am a doink, then I am not a bang. If I am a fing, then I must be not be a bang. If I am a fing, then I must not be a doink.

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Using the information in the box, which statement must be true?