Question

If you draw an object measuring 1 cm on the paper, what would it be equivalent to at a scale of 1:100?

• A. 10 cm
• B. 1 meter
• C. 10 meters
• D. 1 cm

Hint:

Remember that for any scale drawing, the real-life size is determined by multiplying the drawn size by the scale factor. In this case, 1 cm on paper represents 100 cm in real life.

Answer 1

The Correct Option is B

Answer 2

Concept:

• Convert the drawn length to metres first, then apply the scale factor as a plain number. Doing the unit conversion before scaling (rather than after) avoids mixing cm and m mid-calculation.

Step 1: Convert the drawn size to metres first.
$1\ \text{cm} = 0.01\ \text{m}$

Step 2: Apply the scale factor as a plain multiplier.
A scale of 1:100 means every drawn length is multiplied by 100 to get the real length:
$\text{Real length} = 0.01\ \text{m} \times 100$

Step 3: Compute the result.
$0.01 \times 100 = 1$

Final Answer: 1 meter