SAT Subject Test Mathematics Level 1
Example 3 LOGIC If you encounter a logic question, it is likely that about all you’ll have to know is the ...
The original statement, “If p, then q,” is a general form that covers such statements as the following: Of ...
CONTRAPOSITIVE “If p, then q,” is logically equivalent to “If not q, then not p.” Can you see that none of t ...
Example 5 To translate successfully, you must first be sure you understand the original. It’s usually a good ...
If x is the number of whole miles, and each whole mile contains 5 fifth-miles, the total number of fif ...
First, you should realize that answering this question is going to take more than merely adding 1,000 ...
percent of 11P: 11 P +(500% of 11P)=11P +5(11P)= 66P The population at the end of the nineteenth century is 66P ...
Example 7 The key to almost every SAT Subject Test averages question is to think about the sum. Everybody ...
To get the new average, add 77 and divide by 5: The answer is (E). USE THE SUM The key to many averages quest ...
At first you might think, “Halfway at 40 mph, halfway at 60 mph—the average is 50.” But that’s way too simp ...
She travels the second miles at 60 miles per hour: The total time, then, is AVOID THE SPEED TRAP When a ...
The answer is (A). PERMUTATIONS AND COMBINATIONS To be successful with combinations and permutations questions ...
In a word problem where order matters, you will probably need to use permutations. If order does ...
For each of the 165 combinations of women, there are 21 combinations of men, so the combined number of c ...
If the probability that an event will occur is a, then the probability that the event will not occur is ...
To get the probability that two independent events will both occur, multiply the individual probabilities. Thus, ...
Complex Numbers A number in the form a + bi, where a and b are real numbers, is called a complex number ...
The number of permutations of n distinct objects is n! = n(n − 1)(n − 2)···(3)(2)(1) The number of permut ...
Miscellaneous Topics Follow-Up Test 11 Minutes — 9 Questions Directions Solve problems 1−9. Select the best an ...
(A) 6.7 (B) 7.0 (C) 11.3 (D) 13.0 (E) 16.2 2 . “If A is true, then B is false,” is logically equivalent to w ...
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