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This is an MCQ-based quiz for GRE on How To Find The Next Term In An Arithmetic Sequence.
An arithmetic sequence goes from one term to the next by always adding (or subtracting) the same value. The number added (or subtracted) at each stage of the arithmetic sequence is called the common difference.
The first term in a sequence of integers is 2 and the second term is 10. All subsequent terms are the arithmetic mean of all of the preceding terms. What is the 39th term?
Consider the following sequence of integers: 5, 11, 23, 47 What is the 6th element in this sequence?
The sequence Sn is defined by:
Sn=S(n-1) -21
s1=93
What is S57?
-1104
-1176
-1083
-2014
-3914
The sequence Sn is defined by:
Sn=S(n-1) +11
s1=201
What is S101?
1111
602
1301
1312
301
The sequence Sn is defined by:
Sn=S(n-1) +5
s1=14
What is S4?
21
20
41
34
29
In a sequence of numbers, the first two values are 1 and 2. Each successive integer is calculated by adding the previous two and mutliplying that result by 3. What is fifth value in this sequence?
None of the other answers
126
129
33
39
The sequence a1+a2+...+an begins with the numbers 3,11,18,... and has the nth term defined as a1+2n+n2, for n≥2.
What is the value of the 20th term of the sequence?
155
220
443
163
460
