166 L
AW
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NFORCEMENT
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Response (A) cannot be inferred because the paragraph does not support the statement that all
substances that yield valuable clues are found exclusively at a crime scene. It may be that valuable clues
could be found elsewhere.
Responses (C) and (D) are incorrect because they contradict the fifth sentence of the paragraph, which
clearly states that "all substances found at a crime scene are potential sources of evidence."
Response (E) is incorrect because the paragraph provides no information about the value of substances
found somewhere other than at the crime scene.
Part B--Arithmetic Reasoning Questions
In this part, you will have to solve problems formulated in both verbal and numeric form. You will have
to analyze a paragraph to set up the problem and then solve it. If the exact answer is not given as one of
the response choices, you should select response E, "None of these." Sample questions 3 and 4 are
examples of the arithmetic reasoning questions. The use of calculators will NOT be permitted during the
actual testing; therefore, they should not be used to solve these sample questions.
3.
A police department purchases badges at $16 each for all the graduates of the police training
academy. The last training class graduated 10 new officers. What is the total amount of money
the department will spend for badges for these new officers?
(A) $70
(B) $116
(C) $l60
(D) $180
(E) None of these
The correct response is C. It can be obtained by computing the following:
16
¥ 10 = 160
The badges are priced at $16 each. The department must purchase 10 of them for the new officers.
Multiplying the price of one badge ($16) by the number of graduates (10) gives the total price for all of
the badges.
Responses A, B, and D are the result of erroneous computations.
4.
An investigator rented a car for six days and was charged $450. The car rental company charged
$35 per day plus $.30 per mile driven. How many miles did the investigator drive the car?
(A) 800
(B) 900
(C) 1,290
(O) 1,500
(E) None of these
The correct answer is A. It can be obtained by computing the following:
6(35) + .30X = 450
The investigator rented the car for six days at $35 per day, which is $210; $210 subtracted from the
total charge of $450 leaves $240, the portion of the total charge that was expended for the miles driven.
This amount divided by the charge per mile ($240/.30) gives the number of miles (800) driven by the
investigator.
Responses B, C, and D are the result of erroneous computations.