Request a call back

# Class 10 SELINA Solutions Maths Chapter 11 - Geometric Progression

## 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 …… ## 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 ## 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 ## Geometric Progression Exercise Ex. 11(D)

### Solution 1(i) ### 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,  ### Solution 1(ii)  