Question

Find the eleventh term of the Arithmetic progression 27,23,19,....,-65

Answer 1

Here first term (a) = 27

common difference (d) = -4

so, 11th term = a + 10d

= 27 + 10 (-4)

= 27 -40

= -13

Answer 2

an=-65
a=27
d=-4
a11= a+10d
27+(10(-4))
27-40
-13