Question

The length of an insect’s wing, drawn at a scale of 50:1, is 15 cm. What is the actual length of the wing?

Answer 1

The answer is 750.
15×50=750.

Answer 2

0.3 cm

Explanation:

The scale is 50:1 this means if the wing had a real length of 1 cm, in the drawing it will be of 50 cm.

We want to know the real length of the wing of the drawing has a wing with a length of 15cm.

We can express the information we have as follows:

Drawn length Real Length

50cm 1cm

15cm x

Where x is the real length of the wing when the drawing has a length of 15cm.

We can solve the problem by applying rule of three, we must multiply the cross quantities and divide by the remaining amount.

`x=(15*1)/(50)=(15)/(50) =0.3`

The actual length of the wing is 0.3cm.