Find the wrong number in the given number series? 180, 90, 60, 40, 36

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: 121

Explanation:

Given number series is 61, 66, 83, 121, 185

Here the given series follows a pattern that,

 

$$\begin{gathered} 61 \\ 61 + 2 2 + 1 = 66 \\ 66 + 4 2 + 1 = 83 \\ 83 + 6 2 + 1 = 120 ( not 121 ) \\ 120 + 8 2 + 1 = 185 \end{gathered}$$

 

 

Hence, the odd man in the given series is 121.

Correct Answer: 7.5

Explanation:

The given number series follows a pattern that

11

11 - 5.5 = 5.5

5.5 + 4.5 = 10

10 - 3.5 = 6.5

6.5 + 2.5 = 9

9 - 1.5 = 7.5

 

Hence, the next number in the given number series is 7.5.

Correct Answer: 278.5

Explanation:

The given number series is 35, 36, 55, 111, ?

35

35 x 1 + 1 = 36

36 x 1.5 + 1 = 55

55 x 2 + 1 = 111

111 x 2.5 + 1 = 278.5

 

Hence, the next number in the given number series is 278.5.

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: Root

Correct Answer: AY

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.