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If it decreased in 3 months and there asking 1 month then it would be less then 414 so it’s A
On an average, the water level decreased by 114 feet per month.
What is Number system?
A number system is a system representing numbers. It is also called the system of numeration and it defines a set of values to represent a quantity. These numbers are used as digits and the most common ones are 0 and 1, that are used to represent binary numbers. Digits from 0 to 9 are used to represent other types of number systems.
Positive Numbers: Numbers that are represented on the right side of the zero are termed as Positive Numbers. The value of these numbers increases on moving towards the right. Positive numbers are used for Addition between numbers. Example: 1, 2, 3, 4, …
Negative Numbers: Numbers that are represented on the left side of the zero are termed as Negative Numbers. The value of these numbers decreases on moving towards the left. Negative numbers are used for Subtraction between numbers. Example: -1, -2, -3, -4, …
Given:
Melbourne changed by − 414 feet over a 3-month period.
If we see towards the data there is decrease in water level.
as, we have given the data for the three months which 414.
So, per month the data should be less than 414.
Hence, On an average, the water level decreased by 114 feet per month.
Learn more about number system here:
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