Missing Terms in Sequences
ISEE Middle Level · Flashcards · Application
ISEE MIDDLE LEVEL · FLASHCARDS
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QUESTION
What is the missing term in the alternating sequence
10
,
7
,
14
,
11
,
_
,
15
10, 7, 14, 11, \_, 15
10
,
7
,
14
,
11
,
_
,
15
?
QUESTION
What is the missing term in the sequence
3
,
6
,
12
,
24
,
_
,
96
3, 6, 12, 24, \_, 96
3
,
6
,
12
,
24
,
_
,
96
(each term doubles)?
QUESTION
What is the missing term in the geometric sequence
81
,
27
,
_
,
3
81, 27, \_, 3
81
,
27
,
_
,
3
?
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ANSWER
9
9
9
. The geometric sequence has a common ratio of
1
3
\frac{1}{3}
3
1
, so multiply
27
27
27
by
1
3
\frac{1}{3}
3
1
to find the missing term.
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