484, 240, 120, 57, 26.5, 11.25, 3.625

Answer: Option [B]

The wrong number from the given series is 120. It is replaced by 118

484 x 0.5 - 2 = 240

240 x 0.5 - 2 = 118

118 x 0.5 - 2 = 57

and so on.....Questions

6
Find out the wrong number from the following number series ?

484, 240, 120, 57, 26.5, 11.25, 3.625

Answer: Option [B]

The wrong number from the given series is 120. It is replaced by 118

484 x 0.5 - 2 = 240

240 x 0.5 - 2 = 118

118 x 0.5 - 2 = 57

and so on.....
7
Find out the wrong number from the following number series?

6, 10, 14, 34, 66, 130, 258

Answer: Option [A]

The wrong number from the given series is 14. It is replaced by 18

6 x 2 - 2 = 10

10 x 2 - 2 = 18

18 x 2 - 2 = 34

and so on...Advertisement

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8
Find out the wrong number from the following number series?

18, 20, 23, 32, 48, 73, 109

Answer: Option [B]

The wrong number from the given series is 20. It is replaced by 19

18 + 1^{2}

19 + 2^{2}

23 + 3^{2}

32 + 4^{2}

48 + 5^{2}

73 + 6^{2}

9
Find out the wrong number from the following number series?

5, 7, 16, 57, 244, 1245, 7506

Answer: Option [C]

The wrong number from the given series is 7. It is replaced by 6

5 x 1 + 1^{2} = 6

6 x 2 + 2^{2} = 16

16 x 3 + 3^{2} = 57

57 x 4 + 4^{2} = 244

244 x 5 + 5^{2} = 1245

1245 x 6 + 6^{2} = 7506

10
Find out the wrong number from the following number series?

99, 80, 64, 48, 35, 24

Answer: Option [D]

The wrong number from the given series is 64. It is replaced by 63

10^{2} - 1 = 99

9^{2} - 1 = 80

8^{2} - 1 = 63

7^{2} - 1 = 48

6^{2} - 1 = 35

5^{2} - 1 = 24

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