MCQ Subject: Basic Logical Reasoning

In a row of people waiting for a train, the following statements are true: – Person A is standing exactly two positions ahead of Person D. – Person C is standing immediately behind Person B. – Person B is standing exactly three positions ahead of Person A. Where is Person C standing in relation to Person D?

An advertisement claims, ‘Our product is the best because 9 out of 10 customers recommend it,’ without providing any comparative data against other similar products. What logical fallacy does this statement exemplify?

If all Pencils are Writing Instruments and some Writing Instruments are Expensive, which conclusion is logically valid?