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Standard XII
Mathematics
Permutation
How many comb...
Question
How many combinations of two-digit numners having 8 can be made from the following numbers?
8, 5, 2, 1, 7, 6
A
10
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B
6
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C
9
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D
11
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Solution
The correct option is
D
11
The possible two-digit numbers are: 88, 85, 82, 81, 87, 86, 58, 28, 18, 78, 68
These are 11 in number.
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