The 1^st , 7^th, and 25^th terms of an arithmetic progression are the first three consecutive terms of a geometrical progression. The 20th term of...

The 1^st , 7^th, and 25^th terms of an arithmetic progression are the first three consecutive terms of a geometrical progression. The 20th term of the arithmetic progression is 22. Find:
1.(i) The first term and the common difference of the arithmetic progression.
(ii) The sum of the first 20 terms of the arithmetic progression.
2.(i) The 7^th term of the geometric progression.
(ii) the sum of the first six terms of them geometric progression.

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Kavungya answered the question on November 15, 2019 at 08:40

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