as Tn=a+(n-1)d
here a=18
d=31/2-18=-5/2
and Tn=-47
putting values in relation
we get (n-1)= 65×2/5
n-1=26
n=27
there are 27 terms in given ap
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
as Tn=a+(n-1)d
here a=18
d=31/2-18=-5/2
and Tn=-47
putting values in relation
we get (n-1)= 65×2/5
n-1=26
n=27
there are 27 terms in given ap