Is 55 a term of te seqwuence 1,3,5,7..? If yes find which term it is.

Find whether 55 is a term of the AP 7, 10, 13, … or not. If yes, find which term it is.

Which term of the sequence, 4, 3 5/7, 3 3/7 …………. Is the first negative term?

Each of the sequences 3,5,7,... and 4,7,10, is continued to 100 terms.Find how many terms are identical.

Sum of first n terms of the series 1+3+5+7+.... is 100. If 3 consecutive terms be removedfrom these n terms then sum of the remaining terms and sum of original terms are in the ratio 17:20. Which of the following is/are correct.

If the sum to n terms of a sequences is 2n^(2)+4, find its nth.Is this seqwuence as AP?

Find the sum to n term of the A.P.1,3,5,7.....

(a) Find the 10th term of the progression 1 + 3 + 5 +7+ ... (b) Find the 7th term of the progression 80 + 77 +74+ … (c) Find the 22nd term of the progression 7(3)/(4)+9(1)/(2)+11(1)/(4)+... (d) Find the nth term of the progression - 5 - 3 - 1 + 1 +...