Sequence and Series – Arithmetic and Geometric Progressions Chapter 6 Exercise 6B CA foundation maths solutions
CA foundation maths solutions for Chapter 6 Exercise 6B Sequence and Series – Arithmetic and Geometric Progressions are given.
First you should study the CA maths textbook lesson chapter 6 very well.
You must observe and practice all example Problems and solutions which are given in the textbook.
You can observe the solutions given below. You will be try them in your own way.
Sequence and Series – Arithmetic and Geometric Progressions
CA maths Sequence and Series – Arithmetic and Geometric Progressions solutions Exercise 6B chapter 6
CA foundation maths solutions
Chapter 6
Sequence and Series – Arithmetic and Geometric Progressions
Exercise 6B
5. The last term of the series 1, 2, 4, …,. to 10 terms is
6. The last term of the series 1, – 3, 9, – 27 up to 7 terms is
8. The sum of the series – 2, 6, – 18, ….. to 7 terms is.
9. The sum of the series 243, 81, 27, …… to 8 terms is
11. The second term of a G P is 24 and fifth term is 81. The series is
12. They sum of 3 numbers of a G P is 39 and their product is 729. The numbers are
Chapter 6 Exercise 6B solutions CA maths solutions
13. In a G. P the product of the first three terms 27/8. The middle term is
14. If you save 1 paise today, 2 paise the next day 4 paise the succeeding day and so on, then your total savings in two weeks will be
15. Sum of n terms of the series for plus 4 + 44 + 444 + …. is
16. Sum of n terms of the series 0.1 + 0.11 + 0.111 + …… is
17. The sum of the first 20 terms of a G.P is 244 times the sum of its first 10 terms. The common ratio is
18. Sum of the series 1 + 3 + 9 + 27 + is 364. The number of terms is
19. The product of three numbers in GP is 729 and the sum of space is 819. The numbers are
20. The sum of the series 1 + 2 + 4 + 8 + ……. to n term
21. The sum of the infinite G.P 14, – 2, + 2/7, – 2/ 49 + …… is.
22. The sum of the infinite G.P. 1 – 1/ 3 + 1/9 – 1/27 + ….. is.
23. The number of terms to be taken so that 1 + 2 + 4 + 8 + will be 8191 is
24. Four geometric means between 4 and 972 are
Note : You can observe the solutions and try them in your own method.