Math, asked by simanchal864, 1 year ago

what will come in place of question mark in following series1 1 2 4 ? 18 21

ayansh5686: I THINK 10 SHOULD COME
ayansh5686: 1+1=2 and 2+1+1 =4 and 4+2+1+1 = 8 and 8+10 =18
ayansh5686: tell me theirs a comma or not
ayansh5686: in 11241821
ayansh5686: sorry
ayansh5686: 1124?1821

Answers

Answered by raj981
0
11 should come I am sure of it.

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Answered by expelliarmus1
0
8 will be the answer.
simanchal864: how explain
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