Find the sum of indicated number of terms in each of the following Aps
(i) 16, 11,6,….., 23 terms
(ii) `-0.5, -1.0, -1.5`,………,10 terms
(iii) `-1,1/4,3/2`,…..10 terms

Find the number of terms in each of the following APs : 18, 15(1)/(2), 13, …,-47

Find the number of terms in each of the following Aps, (i) 7,13,19,…….. 205 (ii) 18, 15 (1/2), 13,……. - 47 .

Find the number of terms in each of the following A.Ps. (i) 7, 13, 19, ... , 205 (ii) 18,15(1)/(2) , 13,…, -47

Find the sum to indicated number of terms in each of the geometric progressions in 0.15, 0.015, 0.0015 ,.........20 terms .

Find the sum to indicated number of terms in each of the geometric progressions in x^3,x^5,x^(7), .........n terms (if x ne pm 1 )

Find the sum to indicated number of terms in each of the geometric progressions in Exercises 1, - a, a^2, - a^3, .......n terms (if a ne -1 )

Find the sum of the following APs : 0.6, 1.7, 2.8, … , to 100 terms

Find the sum of the following APs : 2,7,12,…to 10^(th) terms.

Find the sum of the following Aps: (i) 2, 7, 12, …….., to 10 terms. (ii) -37, -33, -29, …….., to 12 terms. (iii) 0.6, 1.7, 2.8,….., to 100 terms (iv) (1)/(15), (1)/(12),(1)/(10) ,……,to 11 terms

Find the sum of the series 3+7+11+…..to 10 terms.