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Byju's Answer
Standard XIII
Mathematics
Combination of r Things from n Things When All Are Not Different
Number of way...
Question
Number of ways of selecting 6 shoes, out of 8 pairs of shoes, having exactly two pairs is
A
1680
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B
240
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C
120
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D
3360
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Solution
The correct option is
A
1680
Required number of ways =
8
C
2
×
6
C
2
×
2
2
=
1680
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1
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Combination of r Things from n Things When All Are Not Different
Standard XIII Mathematics
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