ANSWERS:

decimal

multiply

multiply

In petroleum operations, you must use percentages in figuring inventories of bulk product on

hand. One of these is:

1/2 of 1% = ?

You know that to change 12 to a decimal, you must move the decimal point two places to the

left and drop the % sign.

Step 1: 1% = .01

Now divide .01 in half: .01

2

Step 2:

00**_**

2

00

10

10

Another common percentage that you will use is:

1/4 of 1% = ?

Step 1: 1% = .

1/4 of .01 = .01

4

Step 2:

4 .0100

1/4 of 1% = .0025

Solve the following problem:

If a tank holds 2,500 gallons, what is 1/2 of 12 of the total gallons in the tank?

1/2 of 1% = .005

2500

x .005

gallons

41

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