Home
Class 12
MATHS
If the sum to first n terms of the AP 2,...

If the sum to first n terms of the AP 2, 4, 6, ……. Is 240, then the value of n is

A

14

B

15

C

16

D

17

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

The first term of an AP is 148 and the common difference is -2. If the AM of first n terms of the AP is 125, then the value of n is

If the sum of the first 2n terms of the A.P. 2, 5, 8, ..., is equal to the sum of the first n terms of A.P. 57, 59, 61. .... then n equals

Find the sum to 81 terms of the AP-1, 1/4 , 3/2 ,……

If the sum of first 75 terms of an AP is 2625, then the 38th term of the AP is

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)

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

Suppose that the first and the 5^(th) terms of an A.P. are-14 and 2 respectively If the sum of the terms of the A.P is 40, find the number of terms in the A.P.

Find the sum of the first 10 terms of the AP which is (2n-3)/6 .

If the sum of the first 100 terms of an AP is -1 and the sum of even terms lying in first 100 terms is 1, then which of the following is not true?

Let t_(n) , n = 1,2,3,cdots be the n^(th) term of the A.P. 5,8,11, cdots . Then the value of n for which t_(n) = 305 is