Find the 11th term from the last term of an ap 27 ,23,19.........-65
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Answered by
4
l- ( n- 1)d
= l= -65
n = 11
d =23-27=-4
= -25 is answer
= l= -65
n = 11
d =23-27=-4
= -25 is answer
Anonymous:
I think it is easy method, as it is easy formula
Answered by
4
answer is (-25)
first v have to find number of terms
a n = A +(n-1) d.
here a=27; d = 23-27= (-4) ;last term is (-65)
-65=27+ (n-1) -4
-65=27-4n+4
-65= 31-4n
-65-31=4n
-96=4n
n= -96/-4
n=24
so there r 24 terms in given ap
11th term from last is 14th term
A14=a+13d
A14=27+13×(-4)
A14=27-52
A14=-25
hence it answer is (-25)///////
hope it helps u :)
first v have to find number of terms
a n = A +(n-1) d.
here a=27; d = 23-27= (-4) ;last term is (-65)
-65=27+ (n-1) -4
-65=27-4n+4
-65= 31-4n
-65-31=4n
-96=4n
n= -96/-4
n=24
so there r 24 terms in given ap
11th term from last is 14th term
A14=a+13d
A14=27+13×(-4)
A14=27-52
A14=-25
hence it answer is (-25)///////
hope it helps u :)
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