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Q.
In how many ways can 10 balls be divided between two boys, one receiving two and the other eight balls
A.
45
B.
75
C.
90
D.
40
E.
None of the above
View Answer
Correct choice: C
Explanation:
A gets 2, B gets 8; 10!/2!8!=45
A gets 8, B gets 2; 10!/8!2!=45
∴ 45+45=90
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