8 Adults and 4 Children Need to Cross a River

question 22

Multiple Choice

8 adults and 4 children need to cross a river in a small boat that can hold one adult or one or two children. How many one-way trips will it take for all of them to cross the river? ​

• A) 37
• B) 35
• C) 12
• D) 32
• E) 16

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Definitions:

Income Tax

A tax imposed by the government directly on individuals' or organizations' income.

Proportional Tax

At the individual level, a tax whose average tax rate remains constant as the taxpayer’s income increases or decreases. At the national level, a tax for which the average tax rate (= tax revenue/GDP) remains constant as GDP rises or falls.

Economy

The system by which a country's money and goods are produced and used, encompassing production, distribution, and consumption.

Tax-Transfer System

The mechanism through which governments collect taxes from individuals and businesses and redistribute the revenue in the form of government spending or transfers.