Question

David made a scale drawing of a mural he is going to paint. He used a scale of 1 cm=4ft. If the actual mural will be 16 feet long, how long is the mural in David’s drawing

Answer 1

The mural in David's drawing is 4 cm long.

Explanation:

Given:

David made a scale drawing of a mural he is going to paint.

He used a scale of 1 cm=4ft.

If the actual mural will be 16 feet long.

Now, to find how long is the mural in David's drawing.

Let the length of mural in David's drawing be
`x\ cm`.

So, as given 1 cm = 4 ft.

1 cm is equivalent to 4 ft.

Thus,
`x\ cm` is equivalent to 16 feet.

Now, to get the length of mural in David's drawing by using the cross multiplication method:

`(1)/(4) =(x)/(16)`

By cross multiplication:

`16=4x`

Dividing both sides by 4 we get:

`4=x`

`x=4\ cm.`

Therefore, the mural in David's drawing is 4 cm long.