12 and 15 answer. because 1 and 2 continue and then 2 numbers hide 3 and 4, so 5 next 1 number hide i.e 6 then 7, next 3 numbers hide 8,9,10 and display 11. From this they hide the number in this series 0213. as per this next number is 12 after 2 number should hide 13, 14 and display 15 and then 1 number hide 16, then display 17. the series is 1, 2, 5, 7, 11, 12, 15, 17….

rash says

Answer will b 15 i th8nk

suganya says

12 and 15 answer. because 1 and 2 continue and then 2 numbers hide 3 and 4, so 5 next 1 number hide i.e 6 then 7, next 3 numbers hide 8,9,10 and display 11. From this they hide the number in this series 0213. as per this next number is 12 after 2 number should hide 13, 14 and display 15 and then 1 number hide 16, then display 17. the series is 1, 2, 5, 7, 11, 12, 15, 17….

Dhvani says

or maybe 13

Dhvani says

12

anchal says

Answer is 13 coz this is a prime number series…

Deepak says

Yp..

Abdul Rahim A G says

12

fivebee says

13

Karthik says

Is the last no 17 only ? Isn’t it 19 ?

If its 19 then the answer is 14