13. Find the sum of first 15 multiples of 8. Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic Progressions Exercise 5.3 1. Find the sum of the following APs: (i) 2, 7, 12 ,…, to 10 terms. (ii) –…
12. Find the sum of first 40 positive integers divisible by 6. Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic Progressions Exercise 5.3 1. Find the sum of the following APs: (i) 2, 7, 12 ,…, to 10 terms. …
11. If the sum of the first n terms of an AP is (4n – n^2 ), what is the first term (that is (S_1 ))? What is the sum of first two terms? What is the second term? Similarly…
10. Show that (a_1, a_2 … , a_n , … ) form an AP where an is defined as below: (i) (a_n = 3 + 4n ) (ii) (a_n = 9 – 5n ) Also find the sum of the…
9. 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. Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic Progressions Exercise 5.3 1.…
8. Find the sum of first 51 terms of an AP whose second and third terms are 14 and 18 respectively. Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic Progressions Exercise 5.3 1. Find the sum of the following…
7. Find the sum of first 22 terms of an AP in which d = 7 and 22nd term is 149. Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic Progressions Exercise 5.3 1. Find the sum of the following…
6. The first and the last term of an AP are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum? Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic…
5. The first term of an AP is 5, the last term is 45 and the sum is 400. Find the number of terms and the common difference. Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic Progressions Exercise 5.3…
4. How many terms of the AP. 9, 17, 25 … must be taken to give a sum of 636? Arithmetic Progressions Exercise 5.3 Previous Next Class 10 Arithmetic Progressions Exercise 5.3 1. Find the sum of the following APs: …
