Question

In a box, the ratio of nails to screws is 4:7. If there are 20 nails, how many screws are there?​

Answer 1

Step-by-step explanation:

Given:

In a box, the ratio of nails to screws is 4:7.

If there are 20 nails.

Now, to find the number of screws.

Let the number of screws be x.x.

As, given the ratio of nails to screws is 4:7.

So, 4 is equivalent to 7.

Thus, there are 20 nails that are equivalent to x.x.

Now, to get the number of screws we set proportion:

$\frac{4}{7} =\frac{20}{x} </p><p></p><p>$

$By\ cross\ multiplication\ we\ get:</p><p>$

4x=1404x=140

x=35.x=35.

Therefore, the number of screws is 35.