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ARIHANT MATHS-PERMUTATIONS AND COMBINATIONS -Exercise (Subjective Type Questions)
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- Solve the equation 3^(x+1)C(2)+P(2)x=4^(x)A(2),x in N.
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- Number of positive terms in the sequence xn=195/(4Pn)-(n+3p3)/(P(n+1))...
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- Prove that .^(n-1)C(3)+.^(n-1)C(4) gt .^(n)C(3) if n gt 7.
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- In how many ways can a mixed doubles game in tennis be arranged from 5...
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- In how many ways, we can choose two teams of mixed double for a tennis...
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- A family consists of a grandfather, 5 sons and daughters and 8 grand c...
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- A tea party is arranged for 16 persons along two sides of a long table...
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- Every man who has lived on earth has made a certain number of handshak...
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- A train is going from cambridge to london stops at nine intermediate s...
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- n different things are arrnaged around a circle. In how many ways can ...
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- A boat is to be manned by eight men, of whom 2 can only row on bow sid...
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- In how any different ways can a set A of 3n elements be partitioned in...
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- A square of n units is divided into n^(2) squares each of area 1 sq un...
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- How many sets of 2 and 3 (different) numbers can be formed by using nu...
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- There are n straight lines in a plane in which no two are parallel and...
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- 6 balls marked as 1,2,3,4,5 and 6 are kept in a box. Two players A and...
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