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SIA PUBLICATION-PERMUTATIONS AND COMBINATIONS -Problems
- If n is an integer with 0le n le 11, then the minimum value of n!(11 -...
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- ""^(n) C(r-1) = 330 ,""^(n)C(r)=462 , ""^(n)C(r+1) = 462 implies r=
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- 10 men and 6 women are to be seated in a row so that all women sit tog...
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- IF T(n) dentoes the number of triangle formed with n points in ...
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- A regular polygon of n sides has170 digonals . Then n=
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- Acommittee of 12 members is to formed from 9 women and 8 men ...
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- A student is asked to answer 10 out of 13 questions is an examination...
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- underset(k=1)overset(oo)sum underset(r=0)overset(k)sum (1)/(3^(k))(""^...
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- A bag contains n white and n black balls . Pairs of balls are ...
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- the number of five digit numbers divisible by 5 that can be for...
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- ""^(15)P(8)=A+8.""^(14)P(7 )implies A=
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- If ""^((n+1))C(3)+""^((n-1))C(4)gt""^(n)C(3), then the minimum value o...
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- Let n=1! +4! +7! +. . . +400 ! then ten's digit of n is
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- Let a(n)=(10^(n))/(n!) for n = 1, 2, 3,… then the greatest value of n ...
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- A polygon has 14 diagonals. Then, the number of its sides is
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- The number of subsets of (1, 2, 3...9) containing at least one even nu...
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- P points are chosen on each of the three coplanar lines. The maximum n...
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- A binary sequence is an array of '0' s and 1's . The number o...
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- 9 balls are to placed in 9 boxes : and 5 of the balls cannot ...
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- If ""^(n)P(r)=30240and ""^(n)C(r)=252 then the ordered pair (n,r)...
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