Question
What will come in place of the question mark (?) in the
following series? 1.5, 3.5, 9.5, 27.5, 81.5, 243.5, ?Solution
1.5, 3.5, 9.5, 27.5, 81.5, 243.5, ? 1.5 × 3 – 1 = 3.5 3.5 × 3 – 1 = 9.5 9.5 × 3 – 1 = 27.5 27.5 × 3 – 1 = 81.5 81.5 × 3 – 1 = 243.5 243.5 × 3 – 1 = 729.5
- Find the wrong number in the given number series.
25, 36, 29, 40, 33, 50 154Â Â Â Â 165Â Â Â Â 143Â Â Â Â 175Â Â Â Â Â 132Â Â Â Â Â 187
...5000, 4500, 3600, 2480, 1512, 756Â Â Â
Find the wrong number in the given number series,
125, 150, 250, 475, 875, 1500
- Find the wrong number in the given number series.
5, 8, 12, 19, 27, 39 768Â Â Â 2304Â Â Â 288Â Â Â 864Â Â Â 106Â Â Â 324
Find the wrong number in the given number series.
5, 6, 14, 45, 188, 925
120, 240, 80, 320, 60, 384
21 32 54 86 131 186
... 7    12     33    126    635  Â