A lake has a volume of 1,200,000 cubic meters. If the evaporation rate is 5% per

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Question: A lake has a volume of 1,200,000 cubic meters. If the evaporation rate is 5% per month, how much water evaporates in one month?

Options:

Correct Answer: 60,000 m³

Solution:

Water evaporated = 5% of 1,200,000 m³ = 0.05 * 1,200,000 = 60,000 m³.

A lake has a volume of 1,200,000 cubic meters. If the evaporation rate is 5% per month, how much water evaporates in one month?

A lake has a volume of 1,200,000 cubic meters. If the evaporation rate is 5% per month, how much water evaporates in one month?

Step 1: Understand that the lake has a total volume of 1,200,000 cubic meters.
Step 2: Know that the evaporation rate is 5% per month.
Step 3: Convert the percentage into a decimal for calculation. 5% as a decimal is 0.05.
Step 4: Multiply the total volume of the lake by the evaporation rate in decimal form: 0.05 * 1,200,000.
Step 5: Calculate the result of the multiplication: 0.05 * 1,200,000 = 60,000.
Step 6: Conclude that 60,000 cubic meters of water evaporates in one month.

Percentage Calculation – Understanding how to calculate a percentage of a given quantity.
Volume Measurement – Recognizing and working with units of volume in cubic meters.