Question

In a model of a ship,the mast is 9cm height,while the mast of the actual ship is 28m,how long is the model ship?

Answer 1

See we have to make a table first with the data
Length of the actual ship(cm) 1200. 2800
Length of model ship(cm) 9. x
It is in direct proportion.
.
. . 1200/9=2800/x
x=2800×9/1200 = 21
So x=21



Hope it helps

Answer 2

$\bigstar$ Given:

• Height of the mast of model ship = 9 cm
• Height of the mast of actual ship = 28 m

$\bigstar$ To Find

• How long is the model ship

$\bigstar$ Solution:

Let the length of model ship be x

Here, length of mast and actual length of ship are in direct proportion

$\frac{12}{9} = \frac{28}{x}$

$\implies x \times 12 = 28 \times 9$

$x=\frac{28 \times 9}{12}$

$x=\boxed{\underline{\underline{21}}}$

Hence, length of the model ship is 21 cm