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Tardigrade
Question
Mathematics
Number of different words that can be formed using all letters of the word ELEVEN if each word neither begins nor ends in E, is
Q. Number of different words that can be formed using all letters of the word "ELEVEN" if each word neither begins nor ends in E, is
69
110
Permutations and Combinations
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A
24
B
36
C
48
D
none
Solution:
n
(
A
∩
B
)
=
36
;
n
(
A
∩
B
)
=
24
;
n
(
B
∩
A
)
=
36
;
n
(
A
∩
B
)
=
24