Two Search-And-Rescue Teams Leave Base Camp at the Same Time

question 63

Multiple Choice

Two search-and-rescue teams leave base camp at the same time, looking for a lost child. The first team, on horseback, heads north at 2 mph, and the other team, on foot, heads south at 1 mph. How long will it take them to search a distance of 9 miles between them?

• A) 5.5 hours
• B) 3 hours
• C) 4 hours
• D) 3.5 hours
• E) 4.5 hours

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Definitions:

Two-wire Motor

A motor that operates with a simple on-off control, requiring only two wires for operation.

Motor Starter

A control device that initiates the operation of an electric motor by managing electrical current flow.

Control Device

A device used to manage, direct, or regulate the behavior of other devices or systems.

Pilot Device

A manual or automatic device used to initiate control operations, such as signaling or actuating other devices within an electrical system.