In the following question, select the odd letter/letters from the given alternatives.

Correct Answer: Root

Correct Answer: 80

Explanation:

The given number series is 3, 11, 80, 291, 803

$$\begin{gathered} 3 \\ 3 + 2 3 = 3 + 8 = 11 \\ 11 + 4 3 = 11 + 64 = 75 ( not 80 ) \\ 75 + 6 3 = 75 + 216 = 291 \\ 291 + 8 3 = 291 + 512 = 803 \end{gathered}$$

Correct Answer: 40

Explanation:

The given number series is 180, 90, 60, 40, 36

It follows a pattern that,

180 x 1/2 = 90

90 x 2/3  = 60

60 x 3/4  = 45 (NOT 40)

45 x 4/5  = 36

 

Hence, the wrong number in the given series is 40.

Correct Answer: 56

Explanation:

The given number series 8, 18, 56, 232, 1165 

8

8 x 2 + 2 = 18

18 x 3 + 3 = 57 (not 56)

57 x 4 + 4 = 232

232 x 5 + 5 = 1165

 

Hence, the odd man in the given series is 56.

Correct Answer: 254

Explanation:

The given series 16, 254, 1296, 4096, 10000 follows a pattern that

 

2 4 , 4 4 , 6 4 , 8 4 , 10 4 , . . .

Hence, the odd man in the series is 4 x 4 x 4 x 4 = 256 not 254.

Correct Answer: 279

Correct Answer: 81

Explanation:

Given the number series is 4, 6, 12, 30, 81, 315.

Here it follows a pattern that

4

4 x 1.5 = 6

6 x 2 = 12

12 x 2.5 = 30

30 x 3 = 90 not equals to 81

90 x 3.5 = 315

 

Hence the odd one in the series is 81.

Correct Answer: 1243

Explanation:

Given number sequence is 28, 16, 28, 76, 274

Here the sequence follows a pattern that

28

28 x 0.5 + 2 = 14 + 2 = 16

16 x 1.5 + 4 = 24 + 4 = 28

28 x 2.5 + 6 = 70 + 6 = 76

76 x 3.5 + 8 = 266 + 8 = 274

274 x 4.5 + 10 = 1233 + 10 = 1243

 

Hence, the next number in the given number sequence is 1243.

Correct Answer: 6

Explanation:

The given series is 1/2, 1, 3/2, 6, 5/2, 3

1/2

1/2 + 1/2 = 1

1 + 1/2 = 3/2

3/2 + 1/2 = 2 (Not 6)

2 + 1/2 = 5/2

5/2 + 1/2 = 3

 

Hence, the odd man in the given number series is 6.

Correct Answer: 2

Explanation:

Here the given series 28, 12, 4, 2, -2 follows a pattern that

 

$$\begin{gathered} 28 \\ 28 - 2 4 = 28 - 16 = 12 \\ 12 - 2 3 = 12 - 8 = 4 \\ 4 - 2 2 = 4 - 4 = 0 ( NOT 2 ) \\ 0 - 2 1 = 0 - 2 = - 2 \end{gathered}$$

 

Hence, the odd man in the given series is 2.