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If n(AuuBuuC)=100,n(A)=4x,n(B)=6x,n(C)=5...

If `n(AuuBuuC)=100,n(A)=4x,n(B)=6x,n(C)=5x,n(AnnB)=20,n(BnnC)=15,n(AnnC)=25` and `n(AnnBnnC)=10` then the value of x is .

A

10

B

15

C

25

D

30

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