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.
13, 16, 20, 23, 27, ?
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5, 9, 13, 17, ?
21, 25, 34, 50, ?, 111
Find the value of 6 + 11 + 16 + 21 + 21 + .... + 71.
Find the missing (?) in the series.
9, 4, 16, 6, 36, 9, 81, ?
39, 40, 42, 43, 45, ?
What is the next number in the series
4, 8 , 8, 16, 12, 24, __
17, 20, 23, 26, 29, ?