All SSAT Middle Level Math Resources
Example Question #5 : How To Work With Percentages
The sales tax rate for a particular locality is 9%. How much will be paid after tax for $154.92 worth of groceries?
Multiply the price of the groceries before tax - $154.92 - by the decimal equivalent of 9% , which is 0.09. Round this tax to the nearest hundredth (cents), then add to the price of the groceries.
Price after tax:
Example Question #1 : How To Find The Part From The Whole With Percentage
What is 250% of 750?
Taking 250% of a number is the same as multiplying that number by 2.5. We therefore take the product:
Example Question #2 : How To Find The Part From The Whole With Percentage
The product of two whole numbers is 12. Their difference could be
The first thing to do is to determine what two numbers multiply to give you 12.
1 and 12
2 and 6
3 and 4
Now find the difference between each of those pairs.
The difference could be 1, 4, or 11. Only 4 is an answer choice.
Example Question #3 : How To Find The Part From The Whole With Percentage
What is 30% of 150?
One way to go about solving this problem is to convert the percent into a decimal and multiply your whole number by that in order to get your answer. When converting a percent into a decimal, move the decimal point two spaces to the left:
30% = 0.30
Then, multiply this number times 150:
Your answer is .
Example Question #4 : How To Find The Part From The Whole With Percentage
If is of , what is of ?
We can solve for with the algebraic equation:
We can then calculate of :
Example Question #5 : How To Find The Part From The Whole With Percentage
What is of ?
We can convert to or . We can then calculate .
Example Question #6 : How To Work With Percentages
Susan has a coupon for 10% off any one item at her favorite department store. There is also a storewide sale of 50% off all purchases.
If Susan wants to by a shirt originally priced at $42, how much will she pay?
The storewide sale discounts the shirt by 50%:
Susan also has the 10% off coupon, so she's really paying 90% of the cost of the shirt:
Example Question #6 : How To Find The Part From The Whole With Percentage
What is of ?
of can be rewritten as
Example Question #7 : How To Find The Part From The Whole With Percentage
What is of ?
of is equal to:
Example Question #8 : How To Find The Part From The Whole With Percentage
What is 8,000% of 9,000?
Taking 8,000%, as a decimal, is equivalent to multiplying it by , so 8,000% of 9,000 is equivalent to