" i) "1+5+11+19+29+..." to n terms "

Sum up 3+5 + 11 +29 + .... To n terms .

Find the sum of the series – 1 + 5 + 11 +….to n terms.

The sum of the series 1-3+5-7+9-11+ . . . . To n terms is

The sum of the series 1-3+5-7+9-11+ . . . . To n terms is

If (2 + 4 + 6 + 8 + ……………… to 'n' terms) / ( 1 + 3 + 5 + 7 + ……………. To 'n' terms) = 20/19 find 'n'.

The sum of n terms of the series : 5 + 11 + 19+ 29+ 41 . . . is

The sum of n terms of the series : 5 + 11 + 19+ 29+ 41 . . . is

Study the following information to answer the questions given below it. A number sorting machine, when given an input of numbers, rearranges the numbers in a particular manner step by step indicated below-- till all the numbers are arranged in a particular order. {:("input : 29 2 15 5 20 11 50 105 28 19 30 140"),("Step I : 2 29 15 5 20 11 50 105 28 19 30 140"),("Step II : 2 140 15 5 20 11 50 105 28 19 30 29"),("Step III : 2 140 5 15 20 11 50 105 28 19 30 29"),("Step IV : 2 140 5 105 20 11 50 15 28 19 30 29 "),("Step V : 2 140 5 105 11 20 50 15 28 19 30 29"),("Step VI : 2 140 5 105 11 50 20 15 28 19 30 29"),("Step VII: 2 140 5 105 11 50 15 20 28 19 30 29"),("Step VIII : 2 140 5 11 50 15 30 28 19 20 29"),("Step IX: 2 140 5 105 11 50 15 30 19 28 20 29"),(" Step X: 2 140 5 105 11 50 15 30 19 29 20 28"):} How many steps would be required in getting the final output for the following input ? Input : 10, 4, 1, 9, 8, 12

Find the sum of n terms of the series 1/2.5+1/5.8+1/8.11 …to n terms.