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# Reasoning Quiz for RRB NTPC : 6th February 2020 For Number Series

Directions (1 – 15). Find out the missing numbers in the following series

Q1. 0.5, 1.5, 4.5, 13.5, (……)
(a) 45.5
(b) 39.5
(c) 30.5
(d) 40.5

Q2. 121, 225, 361, (……)
(a) 441
(b) 484
(c) 529
(d) 729

Q3. 19, 2, 38, 3, 114, 4, (……)
(a) 228
(b) 256
(c) 352
(d) 456

Q4. 4, 5, 9, 18, 34, (……)
(a) 43
(b) 49
(c) 50
(d) 59

Q5. 3, 6, 18, 72, (……)
(a) 144
(b) 216
(c) 288
(d) 360

Q6. 21, 25, 33, 49, 81, (……)
(a) 145
(b) 129
(c) 113
(d) 97

Q7. 12, 32, 72, 152, (……)
(a) 312
(b) 325
(c) 515
(d) 613

Q8. 2, 15, 41, 80, (……)
(a) 111
(b) 120
(c) 121
(d) 132

Q9. 8, 10, 14, 18, (……), 34, 50, 66
(a) 24
(b) 25
(c) 26
(d) 27

Q10. 1, 2, 6, 24, (……)
(a) 60
(b) 95
(c) 120
(d) 150

Solutions

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