# Question #d332d

##### 1 Answer

You would need more than 6 days for plan B to cost less

#### Explanation:

Let the count of days be

Plan A

Plan B

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For Plan B to cost less we have:

Subtract

Divide both sides by $195

Did you know you can treat units of measurement the same way you do the numbers. So you can cancel them out. $ is a unit of measurement!

The wording of the question implies that the smallest unit of count of time is 1 day. As you may not have part of a day in this context you must round up. So 5.128.. days is read as 6 days

You would need more than 6 days for plan B to cost less