Q.

In how many ways can 3 prizes be distributed among 4 girls, when
(i) no girl gets more than one prize?
(ii) a girl may get any number of prizes? and
(iii) no girl gets all the prizes?


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a

24, 64 and 60

b

22, 62 and 58

c

20, 60 and 56

d

18, 58 and 54 

answer is A.

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Detailed Solution

1st case,
First prize given to any = 4 girls
Second prize given to any = 3 girls
Third prize given to = remaining 2 girls
Therefore, the number of ways to distribute the prize =4×3×2=24
2nd case,
Each prize given to = 4 girls
Way of prize distribution = 4 ways
Girls can receive any number of prizes then,
Number of ways to distribute the prize  =(4×4×4)=64
3rd case,
Number of ways in which a girl gets all the prize = 64
Number of ways in which girls get all the prize = 4
We remove the ways
Therefore, the number of ways to distribute the prize  =64-4=60.
Hence, the ways can 3 prizes distributed belongs to 4 girls = 24, 64 and 60.
Correct option is 1.
 
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