Home
Class 12
MATHS
An AP consists of 23 terms. If the sum o...

An AP consists of 23 terms. If the sum of the three terms in the middle is 141 and the sum of the last three terms is 261, then the first term is

A

6

B

5

C

4

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

In an AP, the first term is 2 and the sum of first five terms is 5. Then the 31st term is

The first term of an arithmetic sequence is 1 and the sum of the first four terms is 100 . Find the first four terms:

If the sum of 12 th and 22nd terms of an AP is 100 then the sum of the first 33 terms of the AP is

The sum of the first three terms of a G. P is 16 and the sủm of the next three terms is 128. Determine the first term, common ratio and 'the sum to n térms of the G. P

Find the sum of the first n terms of the series whose nth term is n(n+3) .

The sum of first three terms of a G.P. is 16 and the sum of the next three terms is 128. Determine the first term, the common ratio and the sum to n terms of the G.P.

In an A.P. of which a is the first term if the sum of the first p terms is zero then the sum of the next q terms is

if the sum of 12^th and 22^th terms of an AP is 100. Find the sum of first 33 terms.

If the 'sum of first m terms of an A . P . be n and the sum of first n terms be m , show that the sum of first m+n terms is -(m+n)

Find the sum of 32 terms of an AP whose third term is 1 and the 6^th term is -11.