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SIA PUBLICATION-PERMUTATIONS AND COMBINATIONS -Problems
- 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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- Find the number of ways of arranging 8 men and 4 women around a circul...
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- IF a polygon of n sides has 275 diagonals then n=
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- Eight different letters of an alphabet are given . Words of f...
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- The number of natural numbers less than 1000, in which no two dig...
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- A three digit number n is such that the last two digits of it ...
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- s(1),s(2) ...............,s(10) are the speakers in a conference, If s...
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- A person who tosses an unbiased coin gains two points for turning up a...
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- The number of positive odd divisors of 216 is
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- For any integer n ge1, the number of positive divisors of n is denoted...
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- Let I(1) and I be two lines intersecting at P. If A(1), B(1), C(1) are...
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- Consider the fourteen lines in the plane given by y=x+r,y=-x+r, where ...
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- The least value of n so that ""^(n) C(5) + ""^(n ) C(6) gt (...
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- The number of ways that 8 beads of different colours be strung as a ne...
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