In the following sum, “?” stands for which digit ?
8 + ?8 + 28 + 83 + 8? = 2?8
By trial and error method from the given options,
'1' satisfies the above given equation.
In the following question, select the missing number from the given series.
23, 29, 24, 30, 25, ?
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64, 73, 83, 94, ?, 119
567, 189, 63, ?, 7
119, 121, 124, 128, ?, 139
13, 17, 26, 42, 67, ?
1, 2, 4, 7, 11, ?
13, 22, 66, ?, 225, 234, 702, 711
6, 13, 20, 27, ?