state gov DSSSB Junior Assistant, Steno and LDC Mock Test 2023 - 24 Logical Reasoning Series Number Series
Choose the correct alternative from the given options that will complete the number series.
7, 17, 31, 65, 127, ?, 511
1
251
2
257
3
254
4
369
Choose the correct alternative from the given options that will complete the number series.
7, 17, 31, 65, 127, ?, 511