Question

112 + 2n. Find its 20th term.
An arithmetic progression 5, 12, 19, ..... has
50 terms. Find its last ferm. Hence find the
sum of its last 15 terms.
n terms is
(CBSE 2015)
In an A.P. az = 7 and a, = 2 + 3az, then find the
sum of its first 20 terms.
The sum of n terms of an A.P. is 3n2 +5. If nth
term of the series is 159, then find the value of
7.
find the number of natural numbers between
01 and 999 which are divisible by both 2 an
(CBSE 2014​

Answer 1

Answer:

sorry didn't no the answer

Step-by-step explanation:

But this question answer will get in Google hope the answer in Google