SAT Math : Arithmetic
Study concepts, example questions & explanations for SAT Math
All SAT Math Resources
Example Questions
Example Question #561 : Arithmetic
Kendall can run 26 miles in 4 hours and 20 minutes. At this rate how long would it take him to run 100 miles?
10 hours and 55 minutes
16 hours and 40 minutes
12 hours and 20 minutes
18 hours and 35 minutes
15 hours and 50 minutes
16 hours and 40 minutes
Set up a proportion and conver 4 hours and 20 minutes into just minutes for now,
so 26/260 = 100/X
Solve for X = 1000 minutes
1000/60 = 16 hours and 40 minutes
Example Question #562 : Arithmetic
A recipe calls for a ratio of 
We can set up a ratio of 
Example Question #563 : Arithmetic
To ship a package, the postal service charges 
The weight will be 150 grams + (1.15 – 0.55)/0.05 * 50g.
You need to subtract first 150 grams cost from the total cost and divide by the price per unit to determine how many units. Next, multiply units by weight per unit and add to the original first 150 grams.
150 + 600 = 750 grams
This is the maximum weight that can be sent at that price; the minimum weight that could be charged this price would be 701 grams. Hence a package weighing 750 grams will be charged $1.15.
Example Question #81 : Proportion / Ratio / Rate
Six is to thirteen-and-a-half as seventeen is to what?
None of the other answers are correct.
Let us express this as an algebraic expression:
We can cross multiply:
Example Question #564 : Arithmetic
Solve the proportion:
Cross multiply the proportion and simplify.
Example Question #311 : New Sat
Toilet 
First you must figure out the proportion 
Example Question #83 : Proportion / Ratio / Rate
In a ceratain class, 
In order the split the boys equally in half to have them be freshmen, a third of the class must be an even number. The only choice that when cut in thirds can then be split in half is 
Example Question #1632 : Psat Mathematics
Out of 85 students in a certain class, 42 own a laptop and 54 own an mp3 player. If 5 students don't own either, what fraction of the students own both a laptop and an mp3 player?
19/80
7/40
1/8
16/85
1/10
16/85
Once you subtract the 5 students that don't own either, there are 80 students left.
There's 96 total students when you add the number that own an mp3 and the number that own a laptop, meaning 16 own both.
Recall that the fraction will be number of students who have both laptop and mp3 divided by the total students in the class.
Example Question #565 : Arithmetic
For every 5 glasses of lemonade, Bud earns $2. How many glasses must he sell to earn $24?
We can set up a simple proportion to solve this. For every 5 glasses, Bud gets $2. For every x glasses, he earns $24.
Example Question #89 : Proportion / Ratio / Rate
Mindi can take down seven museum displays every half hour. How many displays can she take down completely in an hour and fifteen minutes?
Let's set up a proportion to solve this problem, like so:
We can cross-multiply and solve for the unknown. We can ignore our units for now as the answer's units will result in displays as the unit.
This means that Mindi can take down 
All SAT Math Resources
