If n+2C8 : n- 2P4 = 57 : 16 then the value of n is ? – McqOptions

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1.	If ⁿ⁺²C₈ : ^{n- 2}P₄ = 57 : 16 then the value of n is ?
A.	20
B.	19
C.	18
D.	17
Answer» C. 18

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