Question

Cell phone plan A charges $20 per month plus $2 per gigabyte of data. Cell phone plan B

charges $15 per month plus $3 per gigabyte of data. How much data would you need to use
for the monthly charges to be the same?
A)
7

B)
6


C)
5

D)
4

Answer 1

The amount of Data needed for monthly charge to be same = 5 GB

Explanation:

Given as :

Cell Phone plan A

Monthly rent of $ 20 per month

The charge on use of Data is $2 per GB

Cell Phone plan B

Monthly rent of $ 15 per month

The charge on use of Data is $3 per GB

Now from given two data plan ,

To make the monthly charge on Internet for both the cell phone to be same

Let the amount of data needed be x GB

So, A|C to question :

20 + x × 2 = 15 + x × 3

Or, 20 - 15 = (3x - 2x)

Or, 5 = x

∴ x = 5 GB

Hence The Amount of Data needed to make charges same is 5 GB Answer