SOLUTION: The 12th 85th and last terms of an arithmetic progression are 38 257 and 395 respectively. Find the number of term.
Algebra.Com
Question 1070095: The 12th 85th and last terms of an arithmetic progression are 38 257 and 395 respectively. Find the number of term.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
.
.
Subtracting the first equation from this equation,
Then,
So then,
Find k.
131 terms
RELATED QUESTIONS
The first and the last term of an arithmetic progression are 9 and 93.If the sum of the... (answered by mananth,stanbon)
the first and last term of an arithmetic progression are -30 and 10 respectively. find... (answered by tommyt3rd)
The first and last term of the arithmetic progression are 3 and 21 respectively and the... (answered by tommyt3rd)
the 18th and 52nd terms of an arithmetic progression are 3 and 173 respectively. find... (answered by robertb)
The first and the last term of an arithmetic progression are -0.5 and 140.5 respectively. (answered by math_tutor2020,greenestamps,Edwin McCravy,MathTherapy)
A geometric progression and an arithmetic progression have the same first term. The... (answered by htmentor)
The first term of an arithmetic progression is 12 and the sum of the first 16 terms is... (answered by greenestamps)
A geometric progression has 6 terms. The first term is 192 and the common
ratio is 1.5.... (answered by greenestamps)
A geometric progression has six terms. The first term is 486 and the common ratio is ;.... (answered by greenestamps)