Question

The ratio of boys to girls in an after school recycling club is 4:7. If there are 20 boys in the recycling club, how many girls are there?
Suppose one more boy joins the recycling club. What is the new ratio of boys to girls in simplest form?

Answer 1

Answer:

4:7

20 divided by 4 = 5

So 5X7= 35.

There are now 35 girls in the club.

New ratio: 20:35

Simplify it.

The simplest form of 20/35 is 4/7.

This IS NOT A TYPO. This IS NOT INCORRECT.

Since we multiplied by 5, and both 20 and 35 are divisible by 5, is will always be 4/7 if you multiply it by 5 in simplest terms.

One more boy joins.

Now the ratio is 5/7.

5/7 cannot be simplified, therefore, 5/7 simplified is 5/7.

Hope this helps!!