4. How many terms are there in the A.P.?
(i) 7, 10, 13, ... 43.
(ii
(iii) 7, 13, 19, ..., 205.
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An A.P. consists of 60 terms. If the first and the last terms be 7 and 125 respectively, find 32nd term. Question 18. The sum of 4th and 8th terms of an A.P. is 24 and the sum of the 6th and 10th terms is 34.
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