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OTI365 - NTSE - X Standard
NTSE Mental Ability Test - Series Completion Test Model Question Paper

Mental Ability Test - Series Completion Test

Exam Duration: 45 Mins Total Questions : 30

1 )

5, 7, 11, 17, 25, _

(a)
35
(b)
28
(c)
30
(d)
32

2 )

1728, 864, 288, 144, 48_

(a)
16
(b)
24
(c)
36
(d)
48

3 )

1, 5, 4, 7, 5, 9, 15 _

(a)
12
(b)
16
(c)
30
(d)
37.5

4 )

25, 24, 15, -10, -59, _

(a)
-108
(b)
-139
(c)
-84
(d)
-140

5 )

48, 72, 180, 630, _

(a)
2935
(b)
2735
(c)
2485
(d)
2835

6 )

4, 17, 84, 427_

(a)
2659
(b)
2750
(c)
2569
(d)
2570

7 )

21875, 4375, 875, 175, _

(a)
25
(b)
35
(c)
45
(d)
55

8 )

441, 484, 529, _, 625, 676

(a)
584
(b)
576
(c)
252
(d)
515

9 )

200, 175, 140, - ,40, -25

(a)
85
(b)
105
(c)
95
(d)
115

10 )

A, C, B, D, C,

(a)
E
(b)
F
(c)
G
(d)
D

11 )

SN, WO, Ap, EQ, _

(a)
JR
(b)
DR
(c)
KR
(d)
IR

12 )

AB_CABD_A _ _ C

(a)
DCBD
(b)
DDBC
(c)
BDAC
(d)
ABDC

13 )

Find out the wrong term.
105,85,60,30,0,-45,-90

(a)
105
(b)
60
(c)
0
(d)
-45

14 )

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
625,5,125,25,25, ?,5

(a)
5
(b)
25
(c)
125
(d)
625

15 )

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
0,2,8,14, ?,34

(a)
20
(b)
23
(c)
24
(d)
25

16 )

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
240,?, 120,40, 10,2

(a)
180
(b)
240
(c)
420
(d)
480

17 )

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
5,6,9,15, ?,40

(a)
21
(b)
25
(c)
27
(d)
33

18 )

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
6, 12, 21, ?, 48

(a)
33
(b)
38
(c)
40
(d)
45

19 )

In this type of question one term in the number series is wrong. Find out the wrong term.
1236,2346,3456,4566,5686

(a)
1236
(b)
3456
(c)
4566
(d)
5686

20 )

In this type of question one term in the number series is wrong. Find out the wrong term.
10,14,28,32,64,68,132

(a)
28
(b)
32
(c)
64
(d)
132

21 )

In this type of question one term in the number series is wrong. Find out the wrong term.
1,3, 10, 21, 64, 129, 356, 777

(a)
21
(b)
129
(c)
10
(d)
356

22 )

In this type of question one term in the number series is wrong. Find out the wrong term.
56,58, 62, 70, 84, 118, 182

(a)
58
(b)
62
(c)
84
(d)
118

23 )

Various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing term from the given alternatives.
AI, BJ, CK, ?

(a)
DL
(b)
DM
(c)
GH
(d)
LM

24 )

Various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing term from the given alternatives.
B, D, F, I, L, P, ?

(a)
R
(b)
S
(c)
T
(d)
U

25 )

Various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing term from the given alternatives.
A, B, N, C, D, 0, E, F, P, ?, ?, ?

(a)
G, H, I
(b)
G, H, J
(c)
G, H, Q
(d)
J, K, L

26 )

Some of the letters are missing, which are given in the order as one of the alternatives below it. Choose the correct alternative.
_bcc _ ac _ aabb _ ab _ cc

(a)
aabca
(b)
abaca
(c)
bacab
(d)
bcaca

27 )

Some of the letters are missing, which are given in the order as one of the alternatives below it. Choose the correct alternative.
cccbb _ aa _ cc _ bbbaa _ c

(a)
aebe
(b)
baca
(c)
baba
(d)
acbaA

28 )

Some of the letters are missing, which are given in that order as one of the alternatives below it. Choose the correct alternative.
ba_cb_b_bab

(a)
acbb
(b)
babc
(c)
bcaa
(d)
cabb

29 )

Some of the letters are missing, which are given in that order as one of the alternatives below it. Choose the correct alternative.
_ bc _ ca _ aba _ c _ ca

(a)
abcbb
(b)
bbbec
(c)
bacba
(d)
abbec

30 )

Some of the letters are missing, which are given in that order as one of the alternatives below it. Choose the correct alternative.
_ _ aba _ _ ba _ ab