A student divided a number by two when he was required to multiply it by 2. The answer he got was 2. The correct answer should have been:

• A. 8
• B. 12
• C. 6
• D. 4

Let's break down the problem step by step. The student mistakenly divided a number by 2 instead of multiplying it by 2, and ended up with an answer of 2.

Finding the Original Number

Let’s denote the original number as x. According to the student's mistake:

• The operation performed: x / 2 = 2

Solving for x

To find x, we can multiply both sides of the equation by 2:

• x = 2 * 2
• x = 4

Calculating the Correct Answer

If the student had multiplied the original number by 2 instead, the correct operation would be:

• 4 * 2 = 8

Final Answer

The correct answer should have been 8, which corresponds to option A.