Question

Select the number that will come next in the following series.
1, 3, 5, 11, 21, 43, 85, 171,
ans-341/342/247/354​

Answer 1

Answer:

the answer is 341

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as,

1+1+1=3

3+3-1=5

5+5+1=11

11+11-1=21

21+21+1=43

43+43-1=85

85+85+1=171

Therefore,

171+171-1=341.....

Answer 2

WE ARE GIVEN A SERIES OF NUMBER:

HERE WE ARE FOLLOWING PATTERN:

1. 1 =1

2. 1+1+1= 3

3. 3+3-1= 5

4. 5+5+1=11

5. 11+11-1=21

6. 21+21+1=43

7. 43+43-1=85

8. 85+85+1=171

9. 171+171-1 = 341

the pattern discovered here + - + - + - + alternatively the numbers are added and substracted. Therefore we calculate each value.

HENCE THE ANSWER IS 341.