If a number is divided by 3 and the result is 5, what is the number?

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Question: If a number is divided by 3 and the result is 5, what is the number?

Options:

Correct Answer: 15

Solution:

Let the number be x. Then, x/3 = 5, so x = 5 × 3 = 15.

If a number is divided by 3 and the result is 5, what is the number?

If a number is divided by 3 and the result is 5, what is the number?

Step 1: Let's call the unknown number 'x'.
Step 2: According to the question, when 'x' is divided by 3, the result is 5. We can write this as the equation: x / 3 = 5.
Step 3: To find 'x', we need to get rid of the division by 3. We can do this by multiplying both sides of the equation by 3.
Step 4: So, we multiply the left side (x / 3) by 3 and the right side (5) by 3. This gives us: x = 5 * 3.
Step 5: Now, we calculate 5 * 3, which equals 15.
Step 6: Therefore, the number 'x' is 15.

Algebraic Manipulation – The question tests the ability to set up and solve a simple algebraic equation.
Understanding Division – It assesses the understanding of division and its relationship to multiplication.