state gov UP Police Assistant Operator (Radio Cadre) Mock Test Logical Reasoning Series Number Series
Select the option that correctly replaces the question mark (?) in the given series.
19, 57, 171, 513, ?
1
1756
2
1539
3
2111
4
1652
Select the option that correctly replaces the question mark (?) in the given series.
19, 57, 171, 513, ?