Find the sum of the following arithmetic progression: `3,9/2,6,15/2,………..`to 25 terms.

Find the sum of the following arithmetic progression: 3,9/3,15/2,.. to terms.

Find the sum of the following arithmetic progression: 41,36,31,…….to 12 terms.

Find the sum of the following arithmetic progression: 0,46,42, to 10 terms.

Find the sum of the following arithmetic progression: 41,36,31, to 12 terms.

Find the sum of the following geometric progression: 2,6,18 to 7 terms

Find the sum of the following geometric progression: 2,6,18… to 7 terms

Find the sum of the following arithmetic progressions: 50,46,42, to 10 terms (ii) 1,3,5,7, to 12 terms (iii) 3,9/2,6,15/2,dots to 25 terms

Find the sum of indicated number of terms of the following arithmetic progression: 16,11,6,………….23 terms.

Find the sum of the following arithmetic progressions: (i) 50 ,\ 46 ,\ 42 ,\ ... to 10 terms (ii) 1,\ 3,\ 5,\ 7,\ ... to 12 terms (iii) 3,\ 9//2,\ 6,\ 15//2,\ ... to 25 terms

Find the 15th term of the arithmetic progression 10, 4, -2, ….