Seven athletes are participating in a ra...

Seven athletes are participating in a race. In how many ways can the first three athletes win the prizes?

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CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions

If "^9P5+5*^9P4=^(10)Pr , find the value of r.
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There are 2 women participating in a chess tournament. Every partic...
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Seven athletes are participating in a race. In how many ways can the ...
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Two teams are to play a series of five matches between them. A matc...
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Prove that if rlt=slt=n ,t h e n^n Ps is divisible by ^n Pr .
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The number of even divisor of the number N=12600=2^3 3^2 5^2 7 is a. ...
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Find the number of zeros at the end of 130!.
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A candidate is required to answer 6 out of 10 questions, which are ...
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Find the exponent of 3 in 100!
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If "^10 Pr=5040 , find the value of r.
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Statement 1: Number of ways of selecting 10 objects from 42 objects ...
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Find the number of zeros at the end in product 5^6 .6^7 .7^8 .8^9 .9^(...
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Statement 1: Number of ways in which Indian team (11 players) can ba...
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In how any different ways can a set A of 3n elements be partitioned in...
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Statement 1: When number of ways of arranging 21 objects of which r...
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lf a ,b , in {1,2,3,4,5,6,}, find the number of ways aa n db can be ...
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Statement 1: let E={1,2,3,4}a n dF={a ,b} Then the number of onto fu...
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In how many ways can Rs. 16 be divided into 4 persons when none of the...
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Lines 2x – by + 5 = 0 and ax + 3y = 2 are parallel. Find the relation ...
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Find the number ordered pairs (x ,y)ifx ,y in {0,1,2,3, , 10}a n dif|...
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