Determine k so that (3k−2),(4k−6) and (k+2) are three consecutive terms of an AP.
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Third term of an A.P. Is 16 and 7th term is 12 more than 5th term, then find AP.
If the sum of the first n terms of an A.P. is 4n−n2, what is the first term (that is S1)? What is the sum of first two terms? What is the second term? Similarly, find the 3rd, the 10th and the nth terms.
The sum of first n terms of the A.P. 2+8+18+32+........ is ......
What is the common difference, if a1=100 and a2=250
Find the common difference of an A.P. whose first term is 5 and the sum of its first four terms is half the sum of the next four terms.
Find the 31st term of an AP whose 11th term is 38 and the 16th term is 73.
Find the 12th term from the end of the AP: 2, 4, 6,..., 100.
What is the common difference of an A.P. in which a24−a17=−28?