Wednesday, September 24, 2008
Fun With Math
I'm tutoring again and that means (in my case) making up practice questions. It's easier to use the questions in my book, of course. The problem is that I'm being forced to teach out of a new, and therefore unfamiliar, book, and it's impossible to find questions grouped by types. So, I write my own.
Since I figured most of my readers are big nerds and because I haven't posted in a while, I thought I'd give you all a chance to show off your SAT Math Chops (such as they are). Below are six SAT-level questions, written within the last 24 hours. The first person to send me all the correct answers will win
1) a Jeep Grand Cherokee
2) a hunting lease in Dorado County, New Mexico, and
3) a signed first edition of Shakespeare's plays.
More importantly, they'll have my undying respect. Because no matter what anybody tells you, there is NO MORE IMPORTANT SKILL in this world than the ability to solve SAT math questions accurately and quickly. No there is not.
Seriously, the first correct answer set will earn a shout-out and maybe a drink, if I know you. And like you. And you can prove you didn't cheat. (I'm talking to you, Williams).
1) All of these questions would be considered medium-level difficulty on the SAT.
2) To give yourself the true test-taking experience, you should do all questions in under six minutes.
The Mojo Itself
1. A hat is marked up 20% above its original price. Then it's new price is increased by another 30%. What is the total percent by which the original price has been increased to arrive at the final price?
2. A stuffed wombat is put on sale at 40% below normal rate. After a day, the store's owner comes to his sense, realizes how valuable wombats are, and raises the price 80% above it sale price. The final price is what percent of the original price?
3. What number is in the one's digit of 3^237?
4. Which of the following could NOT be the equation of a line parallel to the line: y = 2/3x + 4?
C. y=2/3x + 800
D. 3y + 10x = 4
5. Which of the following points lies on the line: y = 4x-5?
A. (-5, 0)
B. (7, 23)
C. (2, 2)
D. (4, -5)
6. The line y=x+4 forms the hypotenuse of an isoceles right triangle. If one of the remaining sides can be defined by the equation x=3, which of the following could be the equation for the third side?