# Number Series Asked in Syndicate Bank PO 2018 (25 February 2018)

Direction (Q.1-5): What will come in place of the question mark (?) in the following number series?

Q.1 9.8 ? 10.6 7.4 13.8 1

(A) 12

(B) 6.5

(C) 3

(D) 9

(E) None of these

Q.2 609 204 69 24 ? 4

(A) 9

(B) 12

(C) 18

(D) 15

(E) 10

Q.3 500 498 489 461 ? 270

(A) 269

(B) 356

(C) 396

(D) 325

(E) 215

Q.4 1 3 21 71 169 ?

(A) 335

(B) 306

(C) 295

(D) 249

(E) None of these

Q.5 8 5 6 10 21 ?

(A) 35

(B) 53.5

(C) 29.6

(D) 45.5

(E) None of these

Explanation:

 Pattern Series 9.8 9.8 9.8 − .8 9 (✓) 9 + 1.6 10.6 10.6 − 3.2 7.4 7.4 + 6.4 13.8 13.8 − 12.8 1

Explanation:

 Pattern Series 609 609 609 ÷ 3 + 1 204 204 ÷ 3 + 1 69 69 ÷ 3 + 1 24 24 ÷ 3 + 1 9 (✓) 9 ÷ 3 + 1 4

Explanation:

 Pattern Series 500 500 500 − (13 + 1) 498 498 − (23 + 1) 489 489 − (33 + 1) 461 461 − (43 + 1) 396 (✓) 396 − (53 + 1) 270

Answer 4. (E) None of these

Explanation:

 Series : 1 3 21 71 169 331 Pattern : 2 18 50 98 162 +16 +32 +48 +64