This video is related to Chapter 5, Arithmetic Progression, Exercise 5.3 of Class 10th. I tried to upload few sums related to this exercise which will be helpful for students. 1. Find the sum of the following APs (i) 2, 7, 12,…… to 10 terms. (ii) 1/15, 1/12, 1/10,……to 11 terms. 2. Find the sums given below: (i) 7+10 1/2+14+…………..+84 (ii) 34 + 32 + 30 + … + 10 3. In an AP: (i) given a = 5, d = 3, an = 50, find n and Sn. (ii) given a = 7, a13 = 35, find d and S13. (iii) given a12 = 37, d = 3, find a and S12 (iv) given a3 = 15, S10 = 125, find d and a10. (v) given a = 2, d = 8, Sn = 90, find n and an. (vi) given an = 4, d = 2, Sn = -14, find n and a. 4. The first and the last terms of an AP are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum? 5. If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms. 6. Find the sum of the first 40 positive integers divisible by 6. I hope you like this video. Please show your support by : Like Share and Subscribe my channel Maths Solutions. Also comment below if you have any query or any problem in any sum. Thank You.