Question
1500 Â Â Â 150Â Â Â 30Â Â Â ? Â Â Â Â 3.6Â Â
  1.8 What will come in the place of question mark (?) in the following number series?Solution
1500 × (10/100) = 150 150 × (20/100) = 30 30 × (30/100) = 9 9 × (40/100) = 3.6 3.6 × (50/100) = 1.8
72, 82, 62, 102, 22, ?
What will come in place of (?) question mark in the given number series.
13, 15, 18, 23, 30, ?
What will come in place of the question mark (?) in the following series?
12, 13, 22, 47, 96, 177, ?
100, 120, 260, ?, 3220, 16120
What will come in place of the question mark (?) in the following series?
82, ...
75, 80, 95, ?, 155, 200
8Â Â Â Â 24Â Â Â Â Â Â 48 Â Â Â Â Â 144Â Â Â Â Â Â 288 Â Â Â Â Â Â ?
...- What will come in place of (?) in the given number series.
729, 243, 81, 27, ?, 3 8 12 30 105 ? 2598.75
...45Â Â Â Â 45.5Â Â Â Â Â Â 47 Â Â Â Â Â Â 49.5Â Â Â Â Â Â 53 Â Â Â Â Â Â ?
...