GED Math : Other Data Calculations

Example Questions

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Example Question #167 : Statistics

A cheeseburger normally cost . Wednesdays it is discounted . How much is a cheeseburger on Wednesday (in dollars and cents)?

Explanation:

To find the cost of the cheeseburger after the discount is applied we need to first find out how much 20% of 3.50 is.

Thus the discount is 70 cents, or .

Now to find the new price we will need to subtract the discount from the original amount.

Therefore the price of the cheeseburger on Wednesday is .

Example Question #168 : Statistics

Cynthia earned  in 2014. She received a bonus of . What percent of her salary did she receive in bonus?

Explanation:

To find what percentage of her salary her bonus was we need to set up a proportion.

.

Now we cross multiply and divide to get our percentage.

.

Example Question #169 : Statistics

For a treat, Sandy the dog ate  slices of roast beef every day. How many slices would Jeff have to buy every week for Sandy?

Explanation:

To find out how many slices of roast beef Jeff needs to buy in a week we first need to calculate how many slices of roast beef Sandy eats in a week.

We know that she eats 3 slices per day. Using this we can create a unit multiplier to find out how many slices she eats in a week.

Since there are 7 days in a week the convertion becomes,

.

Example Question #170 : Statistics

For in state residents, annual tuition is  for the 2014-2015 school year. For non-residents, it is . About how many times more is non-resident tuition than resident tuition?

Explanation:

To find out how many times more the non-resident tuition is compared to the in state resident tuition we need to create a proportion.

First we will round out numbers  is about  and  is about .

Now we set up our fraction:

.

Example Question #1 : Other Data Calculations

In 2014 the baseball team won the World Series. They won  games in the regular season,  game in the wild card round,  games in the Division Series,  games in the Championship Series and  games in the World Series. How many games did they win overall?

Explanation:

To find the total number of games the baseball team won we need to add all of the games they won together.

Example Question #2 : Other Data Calculations

In 2014 a professional sport drafted  players out of college. About  players were eligible for the draft. What percentage of eligible players were drafted?

Explanation:

To find the percentage of eligible players that were drafted we need to create a proportion.

Now we need to cross multiply and divide to solve the problem.

Example Question #3 : Other Data Calculations

To becomes president of the United States you must win one more than half the toital number of electoral votes (each state is alloted a certain number of votes based on population). There are  votes available. What is the minimum number of electoral votes needed to win?

Explanation:

To find the minimum numer of votes needed to win we can set up the following equation.

Since we know our number of votes is 538 we get,

Example Question #4 : Other Data Calculations

A new donut shop is opening! As an introductory offer they are selling donuts for  a dozen. John has . How many donuts can he buy?