17. It is recommended that a hiker drink 18 ounces (oz) of water per 2-mile hike in a temperate climate and low-altitude areas. When planning a 7.5-mile hike, how much water should be brought along for one hiker?
Answer: A
A hiker should bring 67.5 ounces of water for a 7.5-mile hike.
To determine the amount of water needed for a 7.5-mile hike, we can calculate based on the recommendation of 18 ounces per 2 miles. This translates to needing 67.5 ounces for a 7.5-mile hike.
A) 67.5 oz
This option is correct as it accurately reflects the calculation of water needed for a 7.5-mile hike. Given that each 2-mile segment requires 18 ounces, for a 7.5-mile hike (which consists of 3.75 segments of 2 miles), the total water required is 18 oz x 3.75 = 67.5 oz.
B) 4.8 oz
Option B is incorrect because it significantly underestimates the amount of water needed for a 7.5-mile hike. Based on the provided guideline of 18 ounces per 2 miles, this option does not align with the necessary calculations.
C) 1.35 oz
This option is also incorrect. It suggests an extremely low quantity of water that would not meet the hydration needs for a 7.5-mile hike. The recommendation clearly states a need for much more water based on the distance.
D) 0.83 oz
Option D is incorrect as it proposes an insufficient amount of water for a 7.5-mile hike. This figure does not take into account the guideline of 18 ounces per 2 miles, which would require a much larger volume to sustain hydration.
Conclusion
The correct answer is 67.5 ounces, which directly adheres to the guideline of drinking 18 ounces for every 2 miles. All other options fail to provide an adequate amount of water based on the hike's length, highlighting the importance of proper hydration in outdoor activities.