Question

Find the Next Number in the Following Series: 13, 19, 43, 103
What number should come next: 13, 13, 19, 43, 103, ? Options: a) 221 b) 227 c) 223 d) 217 e) 239

Answer 1

Answer:

d) 217

Step-by-step explanation:

Now we see that the numbers given are in a particular series

13 ,19, 43. 103

Now if we calculate their differences

19-13=6

43-19= 24

103-43= 60

And now we take the second series

6 24 60

24-6=18

60-24= 36

Now if we consider the third series we get

36-18=18

So finally we get 18 now if we consider their differences

18+36+60= 114

And the last number in the series was 103

now

finally 103+114= 217

d) 217 is the correct answer