Question

The flow of oil, in barrels per hour, through a pipeline on July 9 is given by the graph shown above. Of the following, which best approximates the total number of barrels of oil that passed through the pipeline that day? (A) 500 (B) 600 (C) 2,400 (D) 3,000 (E) 4,800

Answer 1

The total number of barrels of oil that passed through the pipeline that day is 3,000 barrels (Option D).

How to calculate the total number of barrels of oil that passed through?

The total number of barrels of oil that passed through the pipeline that day is calculated by applying the following formula as shown below.

The total number of barrels = total area of the curves

If we consider the curve shown in the diagram attached, there are total 5 boxes associated with the curves.

To count the total number of boxes, we count 4 below the curve and 1 inside the curve, making a total of 5 boxes.

Area of a box is calculated as follows;

A = 6 x 100

A = 600 barrels

Since there are 5 boxes, the volume of oil for the day is;

Total = 600 barrels x 5

Total = 3,000 barrels.