A Plane Flew 450 Miles in 3 Hours with the Wind

question 61

Multiple Choice

A plane flew 450 miles in 3 hours with the wind. It took 5 hours to travel the same distance against the wind. What is the rate of the plane in still air and the rate of the wind?

• A) plane: 150 mph; wind: 90 mph
• B) plane: 120 mph; wind: 30 mph
• C) plane: 130 mph; wind: 40 mph
• D) plane: 130 mph; wind: 30 mph

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Definitions:

Deadweight Loss

Deadweight loss is an economic inefficiency that arises when a market outcome is not optimal, resulting in a loss of total surplus due to factors like taxes or monopolies.

Supply

The total amount of a product or service that is available for purchase at any given time.

Elastic

Describing a situation in economics where the demand or supply for a good or service significantly changes in response to changes in price.

Tax Rates

The percentage at which an individual or corporation is taxed, which can vary based on income level, type of goods or activities.