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

Number Series MCQs with Answers

Includes 29 past paper MCQs (marked).

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Number Series MCQs (191–197)

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

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191.
Complete the series: $2, 4, 6, 10, 28, \_\_\_\_\_\_?$
Correct Answer: D. $82$
One-liner
The next term in the series is $82$.
192.
Look at this series: $80, 10, 70, 15, 60, \_\_\_\_\_\_$? What number should come next?
Correct Answer: A. $20$
One-liner
The next number in the series is $20$.
193.
If $3 = 6$, $4 = 8$, and $5 = 10$, then $6 = ?$
Correct Answer: B. $12$
One-liner
The pattern is multiplying by $2$, so $6$ maps to $12$.
194.
Complete the series: $0.5$, $1.5$, $2.5$, $3.5$, ?
Correct Answer: B. $4.5$
One-liner
The next term in the series is $4.5$, as each term increases by $1.0$.
195.
What comes next in the series? $7, 11, 19, ?$
Correct Answer: B. $31$
One-liner
The next term in the series is $31$, as each term increases by a multiple of $4$: $+4, +8, +12$.
196.
The common ratio of a geometric sequence cannot be?
Correct Answer: C. $0$
One-liner
The common ratio of a geometric sequence cannot be $0$ because multiplying by zero would make all subsequent terms zero, collapsing the sequence.
197.
Insert the missing number: $14, 9, 5, 21, 8, 13, 28, 9, \_\_\_\_\_$ ?
Correct Answer: A. $19$
One-liner
The missing number is $19$.