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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.
What is the common difference of an A.P. in which a18−a14=32?
If the common difference of an AP is −6, then what is a16−a12?
The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?
For what value of n, are the nth terms of two APs: 63,65,67,... and 3,10,17,... equal
Find the sum of all the odd positive integers less than 100.
Check whether the following sequence is an AP or not. If it is an AP, find the common difference 'd' and write three more terms.2,25,3,27,......