Question
How many 6-digit numbers can be formed from the digits
0,3,4,5,6 and 8, in which the digits are not repeated?Solution
To make 6-digit numbers from the digits 0,3,4,5,6 and 8, 0 should not appear in the first place. =5×5×4×3×2×1=600.
More Permutation and combination Questions
84, 97, ?, 162, 214, 279
In each of the following number series, one term is missing. Find the missing term.
4, 9, 16, 25, 36, ?
71, 79, 88, 152, ?, 393
What will come in place of (?) question mark in the given number series.
12, 27, 44, 65, ?, 139
4    11     22     ?      56    79    106
...- What will come in place of the question mark (?) in the following series?
1, 9, 35, 91, 189, ? 15.5, 62, 186, ?, 2232, 8928
600 Â Â Â 60Â Â Â 12Â Â Â ? Â Â Â Â 1.44Â Â Â Â 0.72
9    14    38    129    ?   2705   16260
...In each of the following series, one term is missing. Find the missing term.
2, 5, 11, 23, 47, ?
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