Question
8 students appear in an examination. In how many ways
can the result be announced?Solution
Each students can either pass or fail So there exists two possibilities for each students. So total number of ways = 2⁸ = 256
More Permutation and combination Questions
What will come in place of (?) question mark in the given number series.
22, 23, 19, 28, ?, 37
{(12√5 + 6√5 )} ×{(10√5 - 5√5 )} - 8² + 6² = ?
What will come in place of the question mark (?) in the following series?
10, 410, ?, 710, 760, 785
500, 400, 315, 245, ?, 150
12 17 44 147 ? 3065 18420
...- What will come in place of the question mark (?) in the following series?
5, 15, 35, 75, 155, ? 24, 8, 15, ?, 12, 4
75, 80, 95, ?, 155, 200
What will come in place of the question mark (?) in the following series?
10, 11, 15, 31, 95, ?
66, 17, 81, ?, 100, -21
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