Question

What is the value of average after the following code executes?

double average;
average = 1.0 + 2.0 + 3.0 / 3.0;

A. 2.0
B. 3.0
C. 4.0
D. 3.666

Answer 1

The value of average after the code executes is 4.0. This is found by performing the division first (3.0 / 3.0), which equals 1.0, and then adding the result to the other numbers giving an overall sum of 4.0, corresponding to option C.

Step-by-step explanation:

The average value after the given code executes can be determined by following the order of operations in mathematics, which states that division and multiplication should be performed before addition and subtraction. The line of code indicates the following calculation: 1.0 + 2.0 + (3.0 / 3.0).

Let's break down the calculation step by step:

• Firstly, carry out the division: 3.0 / 3.0 = 1.0.
• Next, add the result to the other numbers: 1.0 + 2.0 + 1.0.
• Finally, add these together to get: 1.0 + 2.0 + 1.0 = 4.0.

Therefore, the value of average after the code executes is 4.0, which corresponds to option C.