The number 258,546 becomes 278,746. The difference is found by subtracting the two numbers: 278,746 − 258,546 leaves
you with 20,200.
G
Since there is no remainder, z × 55 = 275. Thus, z = 5, and when 24 is divided by 5, the remainder is 4.
60.
B
Look down the −10° column to the −50 box (two boxes down), then look left to find the wind speed of 20.
61.
H
The key here is to express and with a common denominator that results in numerators that differ by 2 or more so that a
halfway point will be easy to find. Just re-expressing as doesn’t make it easy enough, as the halfway point between
and is not an integer multiple of and 6 differ by only 1. However, converting both numbers to 24ths results in
and The number halfway between is
62.
B
Choice (A) is incorrect because the product of any two negative numbers is positive. Choice (B) is correct because the sum
of any two negative numbers must be negative. You could also solve this question by picking numbers like x = −2 and y = −3
and plugging them into each answer choice. If you pick numbers, all four incorrect answer choices must be eliminated. In this
question, choices (C) and (E) could be true; however, only choice (B) must be true.
63.
J
Just be careful to line up each number in the correct column.
64.
C
The formula for average is
So if the average is 20 and the number of terms is 5, their sum is 20 × 5, or 100. The average must be the middle term of the 5
consecutive terms, so the series looks like a, b, 4 × 5, d, e. If they are consecutive multiples of 5, the largest number must be
6 × 5, or 30. Checking that the terms add up to the sum confirms that this is correct: 10 + 15 + 20 + 25 + 30 = 100.
65.
H
Since the degree measure of a line is 180 degrees, all four angles must add up to 180. Your equation should read 180 = 40 + x
+ y + 40. Subtract 80 from both sides to get rid of each 40 next to x + y, and you are left with 100 = x + y.
66.
67. E
