There Is Only One Petrol Station Within Hundreds of Miles

question 30

Multiple Choice

There is only one petrol station within hundreds of miles. The owner finds that when she charges $3 a litre, she sells 99 litres a day, and when she charges $2.95 a litre, she sells 100 litres a day. The marginal revenue of the 100th litre of petrol (in absolute terms) is:

• A) $5.
• B) $2.
• C) $0.
• D) $3.

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Definitions:

Theropods

A group of bipedal dinosaurs that includes both carnivorous species, such as the Tyrannosaurus rex, and the ancestors of modern birds.

Feathers

The unique integumentary structures made of keratin that are found on birds and are used for flight, insulation, and display.

Attract Mates

The behavioral, physiological, and morphological strategies employed by animals to entice and secure sexual partners for reproduction.

Mammary Glands

Specialized organs in mammals that produce milk to nourish newborn offspring, part of the reproductive system.