ISEE Lower Level Quantitative : Whole and Part
Study concepts, example questions & explanations for ISEE Lower Level Quantitative
All ISEE Lower Level Quantitative Resources
Example Questions
Example Question #11 : How To Find The Part From The Whole
Kevin has 80 marbles and wants to give his brother 40% of them. How many will he keep?
40% of 80 can be calculated as
so Kevin will give his brother 32 marbles and keep
Example Question #12 : How To Find The Part From The Whole
Brianna's favorite song is 2 and a half minutes. There is a drum solo that begins one third of the way into the song and lasts for 24 seconds. How many seconds into the song does the drum solo end?
If a song is 2 and a half minutes long, it is 150 seconds long. If the drum solo starts one third of the way into the song, it will begin at the 50 second mark, since 50 is one third of 150.
Since the drum solo lasts for 24 seconds, it will end at the 74 second mark. Therefore, 74 is the correct answer.
Example Question #13 : How To Find The Part From The Whole
If yoga mats are on buy one get one free, and each mat is priced at $20, what is the average price of a mat, in dollars, if Beth buys four mats?
If mats are $20 each but also buy one get one free, each mat will be $10 on average, as long as an even number of yoga mats are purchased. Given that four is an even number, the average price of a yoga mat is $10.
Example Question #14 : How To Find The Part From The Whole
If you buy two books, the third is half off. All books cost $12. What is the average cost of a book if 3 books are purchased (in dollars)?
The three books will cost $12, $12, and $6.
Calculate the average:
Example Question #11 : How To Find The Part From The Whole
In the number 
Thousandth's place
Thousand's place
Ten thousand's place
Ten thousandth's place
Thousand's place
The number 6 is the thousand's place because 
Example Question #1 : How To Find The Whole From The Part
Jonathan ate 
The fraction 
Example Question #1 : How To Find The Whole From The Part
37 is 20% of what number?
185
74
7.4
135
185
To find the whole from the part, divide the “part” by the percent. In order to do this, first change the percent into a decimal (20% becomes 0.2).
Therefore, 37 is 20% of 185.
Example Question #2 : How To Find The Whole From The Part
What is 3.4 rounded to the nearest whole number?
A whole number is one in which the one's place is the smallest unit. Therefore, in a whole number, there is no decimal. While any number that ends in a .5 decimal or greater rounds up, anything that is smaller than .5 rounds down. Therefore, 
Example Question #3 : How To Find The Whole From The Part
Brad is buying two appliances from a store: a microwave that costs $30 and a toaster that costs $25. He has two coupons: 10 percent off 1 item, and $5 off one item.
What is the most money that he can save with these coupons (in dollars)?
If Brad has 2 coupons, 10 percent off 1 item, and $5 off one item, he should use the 10 percent off coupon on the more expensive item to save more money.
Since the $30 microwave is more expensive, he should use the 10 percent off coupon on this item. This will save him $3 because 10 percent of $30 is $3.
He can then use the $5 off coupon on the $25 toaster, which saves him $5.
Therefore, the total savings is $8.
Example Question #4 : How To Find The Whole From The Part
A classroom contains 30 students, and there are the same number of boys as girls. If 
If the classroom of 30 students has an equal number of boys and girls, then there are 15 girls and 15 boys.
If 
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All ISEE Lower Level Quantitative Resources
