Starting with x = 3, and for i from 1 to 3, set x = x + i. What is the final value of x?

• A. 8
• B. 9
• C. 10
• D. 12

Answer: (B)

This question shows how a value accumulates inside a simple loop. You start with x equal to 3, and on each iteration you add the current loop index i to x. The loop runs for i = 1, 2, and 3.

• After the first iteration: x becomes 3 + 1 = 4

• After the second iteration: x becomes 4 + 2 = 6

• After the third iteration: x becomes 6 + 3 = 9

So the final value is 9. You can also see this as x final = x initial + (1 + 2 + 3) = 3 + 6 = 9.