The correct answer is C - 20.
The first step to approaching tables with missing values is to analyze the descriptions given and identify the relationships between them.
We are given three different types of liquors and two brands of each.
VOL (oz) refers to the number of ounces in a bottle.
SALES PRICE refers to the price the store sells a bottle for.
MONTHLY BEGINNING refers to the number of bottles on stock at the beginning of the month.
MONTHLY RESTOCK refers to the number of bottles the store purchases, or adds to its stock, throughout the month.
MONTHLY SALES refers to the number of bottles the store sold throughout the month. To keep track of the number of bottles in stock, this number will be subtracted from the monthly beginning.
MONTHLY ENDING refers to the number of bottles in stock at the end of the month.
Based on the information above we can formulate the following equation:
MONTHLY BEGINNING + MONTHLY RESTOCK - MONTHLY SALES = MONTHLY ENDING
We can verify that this equation is correct by checking with the first row where all of the values are given:
4 + 5 - 3 = 6
In order to find the value of (II), which is the MONTHLY RESTOCK of Greenpool, we can place the values given into the equation above:
47 + MR - 25 = 42 Subtract 25 from 47:
22 + MR = 42 Subtract 22 from each side:
MR = 20