GED Math : Calculations

Study concepts, example questions & explanations for GED Math

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Example Questions

Example Question #201 : Calculations

Find the range of the numbers:  

Possible Answers:

Correct answer:

Explanation:

The range is the difference between the largest and smallest numbers given.

The largest number is negative 2.

The smallest number is negative 15.

Subtract both numbers.

The range is .

Example Question #202 : Statistics

Determine the range of the following numbers:  

Possible Answers:

Correct answer:

Explanation:

The range is the difference between the largest and smallest numbers.

The largest number is:  

The smallest number is:  

Subtract both numbers.

The answer is:  

Example Question #33 : Other Data Calculations

Evaluate the range of the numbers:  

Possible Answers:

Correct answer:

Explanation:

The range is the difference between the largest and smallest numbers.

The largest number is 25.

The smallest numbers is:  

Subtract both numbers.

The answer is:  

Example Question #34 : Other Data Calculations

For a formal dinner that he is planning, James needs to choose among  different appetizers,  main courses, and  desserts. If the dinner has to have  of each, how many possible combinations can James choose?

Possible Answers:

Correct answer:

Explanation:

In order to find the total number of possibilities, we will need to multiply the number of choices together. Since we have  appetizers,  main courses, and  desserts, we can write the following to find the number of total possibilities:

There are  total possibilities for the three-course dinner.

Example Question #202 : Statistics

A basketball coach is trying to name a captain, a co-captain, and then a team manager from a pool of  students. If each student can only hold one post, how many different ways can the coach pick these three positions?

Possible Answers:

Correct answer:

Explanation:

Starting with the captain, the coach will have  total choices.

Since the coach will have chosen the captain, there are  total choices for co-captain.

Afterwards, the coach will only have  total choices for the team manager.

Thus, multiply these numbers together to get the total number of combinations possible for these three positions.

Example Question #204 : Calculations

The sales of a construction supply company are shown for the first six months of a year:


What is the percent change in sales between March and April?

Possible Answers:

Correct answer:

Explanation:

Start by finding the amount that the sales increased from March to April.

To find the percent change, divide the amount increased by the original value from March, then multiply the value by .

Sales increased by .

 

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