G stands second from one of the extreme ends of the row. C stands second to the left of E, who stands adjacent to G. The number of persons to the left of C is the same as to the right of H. Case-1 More than two persons stand between H and D (either on right or on left). B neither stands adjacent to D nor C. The number of persons between B and I is one less than between F and B, who doesn’t stand adjacent to H. Hence, cases 1 and 2 get eliminated. Case-2a
640 322 164 86 48 ?
...18 22 49 ? 190 226
...542 541 532 507 458 ?
...219 365 511 ? 803 949
...To find the Next number in the given series.
342 510 726 996 1326 ?
...102, 246, 442, 698, 1022, ?
6 , 21, 116, ?, 4674, 33593
83, 88, 86, 91, 89, ?
2, 17, 147, 1167, 8157, 48957
34, 18, 20, ?, 70, 180