Which of the following is true about an Arithmetic Progression (A.P.)?

C. The difference between consecutive terms is constant

A. The ratio between consecutive terms is constant

B. The product of consecutive terms is constant

C. The difference between consecutive terms is constant

D. The sum of consecutive terms is constant

Mathematics · Series, Patterns & Logical Reasoning · page 2 of 20

Number Series MCQs with Answers

Includes 29 past paper MCQs (marked).

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Number Series MCQs (11–20)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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11.
Complete the sequence: $-5$, $-3$, $-1$, _, ?
Correct Answer: A. $1$, $3$
One-liner
The sequence increases by $2$ each step, so the next two terms are $1$ and $3$.
12.
The 21st term of the arithmetic progression whose first two terms are $-3$ and $4$ is:
Correct Answer: A. $137$
One-liner
The 21st term of the AP is $137$.
13.
Past Paper MCQ
What number should come next in the series: $14, 28, 20, 40, 32, 64, ?$
Correct Answer: A. $56$
One-liner
The next number in the series is $56$.
14.
What number should replace the question mark? $8 : 64 :: 7 : ?$
Correct Answer: C. $49$
One-liner
The pattern is $n : n^2$, so $7^2 =$ $49$.
15.
Which of the following is true about an Arithmetic Progression (A.P.)?
Correct Answer: C. The difference between consecutive terms is constant
One-liner
In an Arithmetic Progression (A.P.), the difference between consecutive terms is always constant.
16.
Complete the given series: $6, 13, 28, \_\_\_\_\_\_$ ?
Correct Answer: A. $59$
One-liner
The next term in the series $6, 13, 28$ is $59$.
17.
What comes next in the series: $22, 25, 27, 30, ?$
Correct Answer: B. $32$
One-liner
The next term in the series is $32$, following the alternating addition pattern of $+3$ and $+2$.
18.
What is the value of $k$ in the sequence $1, 6, 13, k, 33, 46$?
Correct Answer: B. $22$
One-liner
The value of $k$ in the sequence is $22$.
19.
The next number in the following sequence is: $27, 9, 3, \_\_\_\_\_$?
Correct Answer: A. $1$
One-liner
The next number in the sequence is $1$, as each term is obtained by dividing the previous term by $3$.
20.
Complete the series: $1, 2, 4, 7, 11, 16, \_\_\_\_\_\_$ ?
Correct Answer: C. $22$
One-liner
The next term in the series is $22$, as the differences between consecutive terms increase by $1$ each time.

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Number Series MCQs with Answers

Number Series MCQs (11–20)

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