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Achire
Questions (3)
The sum of the first 5 terms of an AP is 40 and the 7th term is equal to 4 times the second term, find the first term (a),
2 answers
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The sums of the first 8 terms and first 20 terms of an AP are 56 and 260 respectively; find the first term (a) and the common
1 answer
917 views
3. The 5th term of an AP is 8 and the 10th term is -7, find the 20th term and 50th term of an AP.
2 answers
1,175 views
Answers (1)
4. The sum of the first 5 terms of an AP is 40 and the 7th term is equal to 4 times the second term, find the first term (a), common difference (d) and the sum of the second five terms.
