The following questions reflect the medium to more difficult questions on a typical SAT math section. Both multiple choice and "grid-ins" are included.
ALLOW THREE MINUTES.
1. The base of a parallelogram is 3 times the base of a triangle; the height of the parallelogram is twice the height of the triangle. What is the ratio of the area of the parallelogram to the area of the triangle?
(A) 24 (B) 12 (C) 9 (D) 6 (E) 3
2. If (8x+8)^2 = 64 and x≠0, then x^2 = ?
3. What is a value of x for which 1/(10x-20) > 10?
4. The first 2 terms of a sequence are 4 and 6 and each term after that is the average of all the preceding terms. What is the sum of the first 22 terms?
Answers (formatting error corrected, hopefully! Thanks, Sue)
1. B.
2. 4
3. 2.01>x>2
If interested in purchasing my NEW 2012 Math Challenge Problem/Quiz book, click on BUY NOW at top of right sidebar. 175 problems divided into 35 quizzes with answers at back and DETAILED SOLUTIONS/STRATEGIES for the 1st 8 quizzes. Suitable for SAT I, Math I/II Subject Tests, Common Core Assessments, Math Contest practice and Daily/Weekly Problems of the Day. Includes multiple choice, case I/II/III type and constructed response items.
Price is $9.95. Secured pdf will be emailed when purchase is verified.
Friday, January 18, 2013
Tuneup for Jan 2013 SAT MATH -- TEST YOURSELF
Subscribe to:
Post Comments (Atom)
Posts
4 comments:
Hmm, I went over 3 minutes on the first 3 problems.
There's a formatting problem with the answers. Do you mean for #3 to say just 2? That would make the fraction undefined. The proper answer is 2<x<2.01. (I checked it here: http://www.wolframalpha.com/input/?i=1%2F%2810x-20%29%3E10)
Thanks, Sue.
This is what happens when I start blogging again after a long hiatus. I forget HTML rudiments! Of course, it figures that this is the only comment I receive! Nothing changes...
Are you wishing more people would comment about the questions?
I goofed on the 4th question, and only saw the symmetry in it after I used excel to test my answer. Sigh...
I can see how many people are reading these posts. I must be doing something wrong if I invite response and receive silence!I have always blogged primarily for teachers to share instructional strategies...
Post a Comment