GMAT Math : Arithmetic
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Example Questions
Example Question #22 : Calculating Percents
The above is an annual income tax table for single persons in a given state.
Between January 1 and July 1, Mr. Smith earned $722 per month from a part time job. He earned a raise beginning on July 1, but he ended up not paying any income tax for the year. Assuming he had no other income, what percent was the highest possible raise in his salary? Choose the answer that is closest to the maximum possible raise.
Since Mr. Smith did not pay any income tax, his income was at most $10,000.
He earned $722 per month over six months for a total of
The maximum he earned over the remaining six months is
This represents a
maximum raise.
The closest choice is 30%.
Example Question #23 : Calculating Percents
The above is an annual income tax table for married couples in a given state.
Mr. Barrett began a job on March 1 that paid a salary of 
Assuming that there was no additional income, calculate the Barretts' income tax to the nearest dollar.
Mr. Barrett earned $3,872 per month for ten months for a total of
Mrs. Barrett earned $2,882 per month for nine months for a total of
These salaries and the interest add up to
This puts the Barretts in the $60-80,000 range, so their tax is $470 plis 1.7% of earnings above $60,000. This is
The correct response is $554.
Example Question #24 : Calculating Percents
The above is an annual income tax table for single persons in a given state.
Mr. Parsons earned a salary of 
Mr. Parsons earned $3,122 per month for twelve months in his main job for a total of
He earned $886 per month for eight months in a part-time job for a total
Add these, and the $817 he earned from interest:
This puts Mr. Parsons in the $40-60,000 tax bracket, so he will pay $210 plus 1.3% of what he earns above $40,000. This will be
This rounds to $280.
Example Question #101 : Arithmetic
Total sales at XYZ Corporation increased by 
The amount of sales for this year is 125% of last year's sales. Therefore, we can calculate in the following way:
Or:
Example Question #105 : Arithmetic
Insufficient information is given to answer the question.
To find out what percent 
Example Question #106 : Arithmetic
Insufficient information is given to answer the question.
The question can therefore be rewritten as follows:
Solve by evaluating:
Example Question #21 : Calculating Percents
So 
of 
Example Question #108 : Arithmetic
True or false: 
Statement 1: 
Statement 2: 
Statement 1 ALONE is sufficient to answer the question, but Statement 2 ALONE is NOT sufficient to answer the question.
Statement 2 ALONE is sufficient to answer the question, but Statement 1 ALONE is NOT sufficient to answer the question.
BOTH statements TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient to answer the question.
BOTH statements TOGETHER are insufficient to answer the question.
EITHER statement ALONE is sufficient to answer the question.
Statement 1 ALONE is sufficient to answer the question, but Statement 2 ALONE is NOT sufficient to answer the question.
Assume Statement 1 alone. 
Statement 2 alone is inconclusive.
For example, if 
and 
which is not an integer.
But if 
and 
which is an integer.
Example Question #108 : Arithmetic
Ten students in a class of 
The number of students who don't have a learning disability is:
Using part over whole we get the percentage of students who don't have a learning disability as:
Example Question #109 : Arithmetic
You bought 
The value of the stock after the first year is 90% (0.9) of the value of the stock at time 0.
The value of the stock after the second year is 125% (1.25) of the value of the stock at the end of the first year.
The value of the investment today is:
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