Number Series for IBPS CWE PO - VI Prelim Exam

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

1. 1       7       49        343        (?)

e) None of these

2. 13        20       39        78        145        (?)

e) None of these

3. 12        35        81        173        357        (?)

e) None of these

4. 3       100        297       594       991        (?)

e) None of these

5. 112        119        140       175        224       (?)

e) None of these

Answers:

1. d) The series is - 1.1, - 2.2, - 4.4, - 8.8, - 17.6

2. e) The series is: + 11², + 12², + 13², + 14², + 15²

3. c) The series is: x5, x5, x5 ……

4. d) The series is: x1, x5, x9, x13, x17, x21

5. b) The series is: 1⁴, 2⁴, 3⁴, 4⁴, 5⁴, 6⁴, 7⁴ (= 2401)

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