Which number will replace the question mark (?) in the following series? 5 8 20 34 76 142 ?

Question

Which number will replace the question     mark (?) in the following series?    5 8 20 34 76 142 ?

Abhisek Kumar · Answer

-2,+4,-6,+8,-10,+12,ki series h as 5*2-2=8, 8*2+4=20......and so on

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