The sum of first 16 terms of the AP 10, ...

The sum of first 16 terms of the AP 10, 6, 2 … is

A

`320`

B

`-320`

C

`-352`

D

`-400`

Verified by Experts

The correct Answer is:

B

`l = T_(16) = 10 + 15 xx (-4) = -50`
`therefore "sum" = (n)/(2)(a+l) = (16)/(2) (10-50) = 8 xx (-40) = -320.`

Similar Questions

Explore conceptually related problems

The sum of first 16 terms of the A.P.: 10,6,2,… is :

The sum of first 16 terms of the A.P.: 10,6,2,... Is

The sum of the first 10 terms of the AP: 20, 16, 12,…. Is:

The sum of first 16 terms of the AP 5, 8, 11, 14, ….. Is. ………. .

The sum of first 16 terms of the AP 5, 8, 11, 14, ….... is

What is the sum of first 10 terms of the A.P. 15, 10 ,5 ….?

Find the sum of the first 10 terms of the A.P. 6,4,2,…..

Find the sum of the first 11 terms of the A.P.: 2,\ 6,\ 10 ,\ 14 ,\ ddot

The sum of first 14 terms of an AP is 1050 and its first term is 10, then find the 21st term of the AP.

Find the sum of first 100 terms of A.P. 14, 16, 18,……..