MCQ Subject: Logical Reasoning

Premise 1: All Electric Vehicles are Environmentally Friendly. Premise 2: Some Environmentally Friendly Vehicles are not Fuel-Efficient. Which conclusion is definitely true?

Premise 1: No Sports Cars are Economical Vehicles. Premise 2: Some Economical Vehicles are Electric. Which conclusion is definitely true?

If all Circular Objects are Round and some Round Things are Balls, which conclusion is definitely true?

Statements: 1. All successful tech startups have innovative business models. 2. Some companies with innovative business models are not tech startups. Which conclusion is most logically supported?

Which of the following arguments is valid if we know all cars are vehicles and all vehicles have wheels?