# Number series questions for RRB PO/O.Asst

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

Q1. 1401, 1402, 705, ?, 77

(a) 241

(b) 242

(c) 244

(d) 246

(e) None of these

Q2. 10, 6, 12, 35, ?, 591.75

(a) 130

(b) 129.5

(c) 127.25

(d) 133

e) None of these
Q3. 390, 198, ?, 54, 30, 18

(a) 102

(b) 100

(c) 98

(d) 96

(e) None of these
Q4. 10, 77, 474, ?, 9556, 28683

(a) 2275

(b) 2465

(c) 2195

(d) 2385

(e) None of these
Q5. 150, 50, 131, 67, 116, ?, 105

(a) 92

(b) 87

(c) 120

(d) 90

(e) None of these
Directions (Q.6-10): In each of these number series one number is wrong. Find out the wrong number.

Q6. 5, 6, 7.5, 9.75, 13.25, 18.4275

(a) 13.25(b) 9.75(c) 18.4275(d) 7.5(e) None of these

Q7. 13, 25, 41, 62, 85, 113

(a) 62(b) 25(c) 113(d) 85(e) None of these

Q8. 250, 55, 16, 8.2, 6.1, 6.328

(a) 6.328(b) 55(c) 8.2(d) 6.1(e) 16

Q9.  18, 54, 162, 491, 1466

(a) 18(b) 491(c) 1466(d) 54(e) 162

Q10. 7, 8, 24, 106, 361, 986

(a) 81(b) 106(c) 304(d) 24(e) None of these