Question

Find the 11th term from the last term of AP:27,23,19,.....,-67.

Answer 1

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Answer 2

$\underline{\bold{Question:}}$

Find the 11th term from the last term of AP:27,23,19,.....,-67.

$\underline{\bold{Solution:}}$

Given :

• AP = 27,23,19.........,-67.

Difference = -4.

We may write this AP as :

-67,-63,-59...........27.

• Difference = d = 4.

• First term = a = -67.

• Term to find = $\bold{T_n}$ = 11.

We know that ,

$\boxed{\bold{\mathbf{T_n=a+(n-1)d}}}$

$\implies{\bold{T_n=-67+(11-1)4}}\\\\\\\implies{\bold{T_n=-67+10*4}}\\\\\\\implies{\bold{T_n=-67+40=-27.}}\\\\\\\boxed{\bold{\mathbf{Last\:11^{th}term=-27.}}}$