Questions
The number of ways of selecting 10 objects out 10 identical and 20 distinct objects is
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a
220−20C102
b
210+20C102
c
210−20C102
d
220+20C102
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Correct option is D
No. of ways =20C10+20C9+20C8+…+20C0=220+20C102Similar Questions
The number of positive integral solutions satisfying the equation is
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