## 19.  The sums of n terms of two AP series are in the ratio of (n + 1) : (n + 3), then ratio of their sixth terms is a. 3/7                   b.  7/3                  c.  6/7                         d.  7/6

Subject: Maths, asked 1 week, 3 days ago

## The common difference of the AP is given 15,10,5,... is: a. 3 b. -3 c. 2 d. -2

Subject: Maths, asked 1 week, 4 days ago

## can u answer all the subparts

Subject: Maths, asked 4 weeks ago