Verbal Reasoning :: Series Completion :: Number Series

• Series Completion - Number Series
• Series Completion - Alphabet Series
• Series Completion - Alpha Numeric Series
• Series Completion - Continuous Pattern Series

6, 12,21, ?, 48

Answer:

Explanation:

The pattern is + 6, + 9, + 12, + 15, ..... So, missing term = 21 + 12 = 33.

Hence the answer is (a).

11, 13, 17, 19,23, 25, ?

Answer:

Explanation:

The pattern is + 2, + 4, + 2, + 4, ..... So, missing term = 25 + 4 = 29

Hence the answer is (a)

4, 7, 12, 19, 28, ?

Answer:

Explanation:

The pattern is + 3, + 5, + 7, +9,.....

So, missing term = 28 + 11 = 39

Hence the answer is (c).

1, 9, 25,49,?,121

Answer:

Explanation:

The given series consists of squares of consecutive odd numbers ie., 1², 3², 5², 7²,...

So, missing term = 9² = 81

Find the missing term in the series : 3,20,63, 144,275, ?

Answer:

Explanation:

As discussed above we may label the given series as series I and then form series II to Series IV as shown below:

Series I:  3   20   63   144   275   ?

Series II: 17  43  81  131  ? 

Series III: 26  38  50  ?

Series IV: 12  12 

Cleary the pattern in series III is +12

So the missing term in series III = 50 + 12 = 62;

Missing term in series II = 131 + 62 = 193;

Missing term in series I =  275 + 193 = 468;

Thus the missing term is 468. Hence the answer is (d)

Direct Method

Clearly we have:

Missing term = 275 +(131 + 50 + 12) = 468.

• Series Completion - Number Series
• Series Completion - Alphabet Series
• Series Completion - Alpha Numeric Series
• Series Completion - Continuous Pattern Series