Odd Man Out and Series

Question: 46080, 3840, 384, 48, 24, 2, 1

[A].

1

[B].

2

[C].

24

[D].

384

Answer: Option C

Explanation:

The terms are successively divided by 12, 10, 8, 6, …etc.

So, 24 is wrong, it should be 8 (48/6 = 8).

Question:
582, 605, 588, 611, 634, 617, 600

[A].

634

[B].

611

[C].

605

[D].

600

Answer: Option A

Explanation:

Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.

Question:
36, 54, 18, 27, 9, 18.5, 4.5

[A].

4.5

[B].

18.5

[C].

54

[D].

18

Answer: Option B

Explanation:

The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.

Question:
22, 33, 66, 99, 121, 279, 594

[A].

33

[B].

121

[C].

279

[D].

594

Answer: Option C

Explanation:

Each of the number except 279 is a multiple of 11.

Question: 2, 5, 10, 17, 26, 37, 50, 64

[A].

50

[B].

26

[C].

37

[D].

64

Answer: Option D

Explanation:

(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1

But, 64 is out of pattern.

Question: 331, 482, 551, 263, 383, 362, 284
[A].

263

[B].

383

[C].

331

[D].

551

Answer: Option B

Explanation:

In each number except 383, the product of first and third digits is the middle one.

Question:
835, 734, 642, 751, 853, 981, 532

[A].

751

[B].

853

[C].

981

[D].

532

Answer: Option A

Explanation:

In each number except 751, the difference of third and first digit is the middle one.

Question: 396, 462, 572, 427, 671, 264
[A].

396

[B].

427

[C].

671

[D].

264

Answer: Option B

Explanation:

In each number except 427, the middle digit is the sum of other two.

Question:
8, 27, 64, 100, 125, 216, 343

[A].

27

[B].

100

[C].

125

[D].

343

Answer: Option B

Explanation:

The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube.

Question:
1, 4, 9, 16, 20, 36, 49

[A].

1

[B].

9

[C].

20

[D].

49

Answer: Option C

Explanation:

The pattern is 12, 22, 32, 42, 52, 62, 72. But, instead of 52, it is 20 which to be turned out.