Question

find the eleventh term from there last of the AP : 27,23,19....-65

Answer 1

11th tern from last= -65+10×4=-65+40=-25

Answer 2

in case of this arithmetic progression,
a(first term)=27
d=(common difference)=23-27= -4
now, A11=a+(11-1)d
=27+10*(-4)
=27+(-40)
= -13