Question
58Â Â Â Â Â 69Â Â Â Â Â Â 56 Â Â Â Â Â Â ?Â
     54       73 What should come in place of question mark ‘?’ in the following number series?Solution
58Â +Â 11 = 69 69Â -Â 13 = 56 56Â +Â 15 =Â 71 71Â -Â 17 = 54 54Â +Â 19 = 73
13     26      78      ?     468     936
...12                          13                         30                     �...
13 14 22.5 ? 120 363
...3 ? 7 16 71 346
...24 47 137 ? 2679 16049
...51     53     109     332     ?     6686
...620 632 608 644 596 ?
...3 5 7 25 85 481
...9 134 170 ? 577 1306
...24Â Â Â 25Â Â Â Â 34Â Â Â Â 59Â Â Â 108Â Â Â ?