# SELINA Solutions for Class 10 Maths Chapter 11 - Geometric Progression

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## Chapter 11 - Geometric Progression Exercise Ex. 11(A)

Solution 1(i) Solution 1(ii) Solution 1(iii) Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Solution 7 Solution 8 Solution 9 Solution 10 Solution 11 Solution 12

Given series: 2, - 6, 18, - 54 …… ## Chapter 11 - Geometric Progression Exercise Ex. 11(B)

Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Solution 7 Solution 8 Solution 9 Solution 10 ## Chapter 11 - Geometric Progression Exercise Ex. 11(C)

Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Solution 7 Solution 8(i) Solution 8(ii) Solution 9 ## Chapter 11 - Geometric Progression Exercise Ex. 11(D)

Solution 1(i) Solution 1(ii) Solution 1(iii) Solution 1(iv) Solution 1(v) Solution 1(vi) Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Solution 7 Solution 8 Solution 9 Solution 10 Solution 11 Solution 12(i) Solution 12(ii) Solution 12(iii) Solution 13 Solution 14 Solution 15

First term (a) =  Solution 16

First term (a) = 125 Solution 17 Thus, the given sequence is a G.P. with  Solution 18 Solution 19

Let the five terms of the given G.P. be Given, sum of first two terms = -4 And, 5th term = 4(3rd term)

ar2 = 4(a)

r2 = 4

r = ±2

When r = +2, When r = -2,  ### STUDY RESOURCES

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