Arithmetic and Geometric Patterns
ISEE Upper Level Quantitative Reasoning · Flashcards
ISEE UPPER LEVEL QUANTITATIVE REASONING · FLASHCARDS
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QUESTION
What is the common difference
d
d
d
for the arithmetic sequence
−
4
,
1
,
6
,
11
,
…
-4, 1, 6, 11, \dots
−
4
,
1
,
6
,
11
,
…
?
QUESTION
What is the next term in the arithmetic sequence
18
,
13
,
8
,
3
,
…
18, 13, 8, 3, \dots
18
,
13
,
8
,
3
,
…
?
QUESTION
What is the common ratio
r
r
r
for the geometric sequence
3
,
−
6
,
12
,
−
24
,
…
3, -6, 12, -24, \dots
3
,
−
6
,
12
,
−
24
,
…
?
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ANSWER
r
=
−
2
r=-2
r
=
−
2
. Divide consecutive terms to determine the constant ratio of -2 in this geometric sequence.
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