Odd Man Out and Series - 01

01. 41, 43, 47, 53, 61, 71, 73, 81

  • 161
  • 271
  • 373
  • 481
Answer:- 1
Explanation:-

Solution:
Each of the numbers except 81 is a prime number.

02. 835, 734, 642, 751, 853, 981, 532

  • 1751
  • 2853
  • 3981
  • 4532
Answer:- 1
Explanation:-

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

03. 331, 482, 551, 263, 383, 362, 284

  • 1263
  • 2383
  • 3331
  • 4551
Answer:- 1
Explanation:-

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

04. 16, 25, 36, 72, 144, 196, 225

  • 136
  • 272
  • 3196
  • 4225
Answer:- 1
Explanation:-

Solution:
Each of the numbers except 72 is a perfect square.

05. 2, 5, 10, 17, 26, 37, 50, 64

  • 150
  • 226
  • 337
  • 464
Answer:- 1
Explanation:-

Solution:
(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.

06. 1, 4, 9, 16, 20, 36, 49

  • 11
  • 29
  • 320
  • 449
Answer:- 1
Explanation:-

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

07. 1, 4, 9, 16, 23, 25, 36

  • 19
  • 223
  • 325
  • 436
Answer:- 1
Explanation:-

Solution:
Each of the numbers except 23, is perfect square.

08. 6, 9, 15, 21, 24, 28, 30

  • 128
  • 221
  • 324
  • 430
Answer:- 1
Explanation:-

Solution:
Each of the numbers except 28, is a multiple of 3.

09. 10, 25, 45, 54, 60, 75, 80

  • 110
  • 245
  • 354
  • 475
Answer:- 1
Explanation:-

Solution:
Each of the numbers except 54 is multiple of 5.

10. 8, 27, 64, 100, 125, 216, 343

  • 127
  • 2100
  • 3125
  • 4343
Answer:- 1
Explanation:-

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

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