Number Series Quiz Questions for Competitive Exams

Select the correct option that will fill in the blank and complete the series.

1024, ?, 1600, 2000, 2500, 3125

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
5, 11, 21, 43, 85, ?

Which number will replace the question mark (?) in the following series?
16, 24, 36, ?, 81

Find the wrong number in the series.
2, 9,5, 36, 125, 648

Choose the correct option which complete the series.
ADG, XVT, BEH, WUS, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
AY, CW, EU, ?

Fill in the blank by suitable letters.
a_c_ba_ca_cb

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
122, 197, 290, ?

Find the missing number in the following series:
43, 172, 86, 344, ?

A series is given, with one term missing. Choose the correct alternative from the given options that will complete the series.
51    (?)    57      65      81