Question

WHICH TERM OF AN A.P. 16,11,6,1,....IS -54?

Answer 1

$\textbf{\underline {\underline {Solution:-}}}$

A = 16,

An=-54.

d= 11-16=5

An = A+(n-1)d

-54=16+(n-1)5

-54-16=(n-1)5

70/5=n-1

14=n-1

14+1=n

n=15

$\textbf{\underline {The 15th Term Of The A.P Would Be -54.}}$