1.

Which term of an A.P.16,11,6,1,...Is -54 ?

Answer»

ANSWER:

Step-by-step explanation:

16,11,6,1,...Is -54

a=16,d=-5

-54=16+(n-1)(-5

-54-16=(n-1)(-5)

-70=-5n+5

5n=75

n=15



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