alleryFind the 7th term of the series that starts 5, 9, 13, 17 and continues the same way.
- 25
- 29
- 33
- 27
Show answer and solution
Correct answer: B. 29
The gap is 4, so the 7th term is 5 + 6 x 4 = 29.
SSC CGL Number Series — practice questions — page 2
Explore 62 free Number Series questions in SSC CGL Reasoning. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 31–60 of 62.
Find the 7th term of the series that starts 5, 9, 13, 17 and continues the same way.Read the answer and worked solution →Which number fills the blank in 3, 8, 13, __, 23, 28?Read the answer and worked solution →What is the sum of 2 + 5 + 8 + 11 + 14?Read the answer and worked solution →By pairing numbers from both ends, what is 1 + 2 + 3 + ... + 100?Read the answer and worked solution →A four-term series starts at 7 and drops by 3 each step. What is the last term?Read the answer and worked solution →Three numbers 10, x, 30 are in arithmetic progression. What is x?Read the answer and worked solution →What is the sum of the four numbers 6, 10, 14 and 18?Read the answer and worked solution →How is a geometric progression term formed from the last?Read the answer and worked solution →What is the common ratio of the sequence 2, 6, 18, 54?Read the answer and worked solution →What term follows 2, 6, 18, 54 in the same pattern?Read the answer and worked solution →Which number comes next in 64, 32, 16, 8, ...?Read the answer and worked solution →Find the 6th term of the series that runs 3, 6, 12, 24 and so on.Read the answer and worked solution →What happens to the signs of terms when the common ratio is negative?Read the answer and worked solution →A progression whose terms alternate in sign is described as what kind of sequence?Read the answer and worked solution →If the common ratio is below 1 in size, the terms do what?Read the answer and worked solution →Geometric progressions show exponential change, while arithmetic ones show what?Read the answer and worked solution →An infinite geometric series converges when its common ratio has which size?Read the answer and worked solution →Who used a geometric progression of population growth in his famous essay on population?Read the answer and worked solution →Which ancient Greek work analyzes geometric progressions in its Books VIII and IX?Read the answer and worked solution →How is each Fibonacci number formed?Read the answer and worked solution →Which number follows 13, 21, 34, 55 in the Fibonacci pattern?Read the answer and worked solution →Fill the blank in the Fibonacci run 1, 1, 2, 3, 5, __, 13.Read the answer and worked solution →In the Fibonacci run ..., 55, 89, ..., what is the term after 89?Read the answer and worked solution →Which Indian scholar is linked to the earliest description of these numbers around 200 BC?Read the answer and worked solution →The Fibonacci numbers take their name from which mathematician's city?Read the answer and worked solution →Fibonacci used the sequence in his 1202 book to model growth of which population?Read the answer and worked solution →Which mathematician first used the name Fibonacci sequence in the 19th century?Read the answer and worked solution →The ratio of two consecutive Fibonacci numbers tends toward which constant?Read the answer and worked solution →Which journal is devoted entirely to the study of Fibonacci numbers?Read the answer and worked solution →What comes next in 5, 15, 45, 135, ...?Read the answer and worked solution →
Worked practice questions
Which number fills the blank in 3, 8, 13, __, 23, 28?
- 17
- 19
- 20
- 18
Show answer and solution
Correct answer: D. 18
Each term rises by 5, so the term after 13 is 13 + 5 = 18.
What is the sum of 2 + 5 + 8 + 11 + 14?
- 35
- 45
- 40
- 38
Show answer and solution
Correct answer: C. 40
Five terms times the average of first and last, (2 + 14) / 2 = 8, gives 5 x 8 = 40.
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