Sequence And Series Question 516
Question: There are 15 terms in an arithmetic progression. Its first term is 5 and their sum is 390. The middle term is
[MP PET 1994]
Options:
A) 23
B) 26
C) 29
D) 32
Show Answer
Answer:
Correct Answer: B
Solution:
According to the given condition $ \frac{15}{2}[10+14\times d]=390 $
$ \Rightarrow $ $ d=3 $ Hence middle term $ i.e. $ $ 8^{th} $ term is given by $ 5+7\times 3=26 $ .
BETA
