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If a,b and c are the gretaest values of ...

If `a,b` and `c` are the gretaest values of `C(19,p), C(20,q)` and `C(21,r)` respectively then

A

`a/11 = b/22 = c/42`

B

`a/10 = b/11 = c/42`

C

`a/11 = b/22 = c/21`

D

`a/10 = b/11 = c/21`

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A
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