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The 15th and 21st terms

In an arithmetic series, the sum of the 5th to the 8th terms inclusive is 114, whilst the sum of the 12th to 15th terms
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2. asked by Fasi
3. 3,690 views
The 15th and 21st terms of an arithmetic sequence are -67 and -97. What is the 30th term?This is all I can figure out? -97-
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2. asked by Jalen
3. 1,177 views
The 21st, 37th and 56th terms of an AP are consecutive terms of a GP. Find the common ratio of the GP.
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2. asked by Shehu
3. 990 views
In an arithmetic progression (A.P) of 21 terms: the 21st term is 252.find:the sum of the first 16 terms
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2. asked by Sarah
3. 124 views
In an arithmetic sequence , the 9th term is twice the 3rd term and 15th term is 80. Find the common difference and the sum of
1. 2 answers
2. asked by ying
3. 1,725 views
The 5th,9th and 16th terms of a linear sequence (A.P) are the consecutive terms of an exponential sequence (G.P)(i) find the
1. 3 answers
2. asked by Priscilla kumi
3. 914 views
The fifth ninth and sixteenth terms of a linear sequence ( ap) are consecutive terms of an exponential sequence1 find the common
1. 4 answers
2. asked by oluwatofunmi
3. 3,352 views
Given a geometric progression whose common ratio is 2, if the sum of the 6th to 7th terms is 288, determine the sum of the 4th
1. 2 answers
2. asked by Jane
3. 1,099 views
Show that the 21st, 37th and 65th terms of the linear sequence are consecutive terms of an exponential sequence whose common
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2. asked by Andrew 1
3. 1,242 views
The 10 th term of an arithmetic sequence is equal to the sum of 40 and 15th term. If the 15th term is 127, what is the common
1. 1 answer
2. 221 views