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Question
Mathematics
3 persons have 4 coats, 5 waist coats and 6 hats. The number of ways in which they put on the clothes are:
Q.
3
persons have
4
coats,
5
waist coats and
6
hats. The number of ways in which they put on the clothes are:
1902
205
Bihar CECE
Bihar CECE 2005
Report Error
A
4
3
×
5
3
×
6
3
B
4
×
5
×
6
C
4
!
5
!
6
!
D
none of these
Solution:
Total, number of coats
=
4
, waist coats
=
5
=
5
and hats
=
6
The total number of ways, in which one person put the clothes
=
4
×
5
×
6
The total number of ways, that all three persons put the clothes
=
4
3
×
5
3
×
6
3