Question

what number comes next?
5,12,23,50,141,?​

Answer 1

Given :

series = 5, 12, 23, 50, 141, ?

Finding the difference of the given sequence-

12 - 5 = 7

23 - 12 = 11

50 - 23 = 27

141 - 50 = 91

Now, series is 7, 11, 27, 91, ?

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Subtracting the previous term -

11 - 7 = 4

27 - 11 = 16

91 - 27 = 64

Now, series is 4, 16, 64, ?

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Multiplying with "4" -

4 x 4 = 16

16 x 4 = 64

Hence :

First multiply with "4" then add "91" and then add "141" -

64 x 4 = 256

256 + 91 = 347

347 + 141 = 488

The answer is 488.