26. A panel of 4 is to be formed from 4 boys and 3 girls. If it must contain at least 2 girls the panel can be formed in: A. 9 ways C. 22 ways D. 30 ways B. 18 ways う7S。

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Chapter1: Combinatorial Analysis
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Solve Q26, 27 & 28 Showing detailly all steps

23. The number of different groups of four letters that can be made from the letters of the word
CH
В. 1
SEREKI is
C. 10
D. 192
A. 15
24. A boy wishes to form a sum of money. If he has five coins each of a different denominatio:
then the number of sums of money he can form is:
A. 31
25. A panel of 4 is to be formed from 4 boys and 3 girls. If it must contain 2 boys and 2 girls,
the panel can be formed in:
A. 9 ways
В. 32
С. 1
B. 18 ways
C. 22 ways
D. 30 ways
26. A panel of 4 is to be formed from 4 boys and 3 girls, If it must contain at least 2 girls the
panel can be formed in:
A. 9 ways
B. 18 ways
C. 22 ways
D. 30 ways
• 27. Six children are to be divided into two groups of three children, this can be done in:
A. 20 ways
B. 15 ways
C. 10 ways
D. 60 ways
28. The number of ways in which nine oranges can be divided exactly among three children is
Ø. 3
A. 280
B. 1680
D. 50
Transcribed Image Text:23. The number of different groups of four letters that can be made from the letters of the word CH В. 1 SEREKI is C. 10 D. 192 A. 15 24. A boy wishes to form a sum of money. If he has five coins each of a different denominatio: then the number of sums of money he can form is: A. 31 25. A panel of 4 is to be formed from 4 boys and 3 girls. If it must contain 2 boys and 2 girls, the panel can be formed in: A. 9 ways В. 32 С. 1 B. 18 ways C. 22 ways D. 30 ways 26. A panel of 4 is to be formed from 4 boys and 3 girls, If it must contain at least 2 girls the panel can be formed in: A. 9 ways B. 18 ways C. 22 ways D. 30 ways • 27. Six children are to be divided into two groups of three children, this can be done in: A. 20 ways B. 15 ways C. 10 ways D. 60 ways 28. The number of ways in which nine oranges can be divided exactly among three children is Ø. 3 A. 280 B. 1680 D. 50
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