Question
21Â Â Â Â Â Â 24 Â Â Â Â Â Â 22Â Â Â Â Â Â
25     23       ? Find the missing number in the following number series:Solution
21 + 3 = 24 24 - 2 = 22 22 + 3 = 25 25 - 2 = 23 23 + 3 =Â 26
Choose the missing term.
3F, 6G, 11I, 18L,?
60, 100, 160, 240, ?, 460
1 12 31 58 93 ?
32, 48, 72, 108, ?, 243
36   37    33   42    ?      51    15
...1500 Â Â Â 150Â Â Â 30Â Â Â ? Â Â Â Â 3.6Â Â Â Â 1.8
9 28 83 250 ? 2248
4    9    28    99    ?   2105   12660
...12, 25, 51, ?, 207, 415Â
18    ?    20    13     22     11