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MHT CET 2021 Math Solved Paper
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© examsnet.com
Question : 25
Total: 100
Out of 7 consonants and 4 vowels, the number of words (not necessarily meaningful) that can be made, each consisting of 3 consonants and 2 vowels, is
24800
25100
25200
25400
Validate
Solution:
3 consonants can be selected from 7 consonants
=
7
C
3
ways
2 vowels can be selected from 4 vowels
=
4
C
2
ways
∴
Required number of words
=
7
C
3
×
4
C
2
×
5
!
[selected 5 letters can be arranged in 5 ! ways, to get a different word]
=
35
×
6
×
120
=
25200
© examsnet.com
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