If some three consecutive coefficients in the binomial expansion of (x – McqOptions

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1.	If some three consecutive coefficients in the binomial expansion of (x + 1)n in powers of x are in the ratio 2 : 15 : 70 then the average of these three coefficients is:
A.	964
B.	232
C.	227
D.	625
Answer» C. 227

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