Question

Find the 10th term from the end of the
A. P. :60, 130,200,.......2160.​

Answer 1

Answer:

Given

AP-    4,9,14........254

Last term of AP is 254

Since it is been asked to find the 10th term from end; a=254

d= -5 , n=10

an= a+(n-1)d

   an = 254+ (10-1)(-5)

  an= 254-45

an= 209

hope this is helpful

Read more on Brainly.in - https://brainly.in/question/2035443#readmore

Answer 2

Solution..

a=60

d=130-60=70

l=2160

let ..2160 is the nth term of the series..

now..

2160=60+(n-1)70

=>2160-60+70=70n

=>2170/70=n

=>n=31

so the 10th term from the end of the series will become the 21th term from the first...

therefore..

a(21)=60+(21-1)70=60+1400=1460

hope this helps you..............