Find the sum of an A.P of seventeen terms whose middle term is five .

Question

Reiny · Accepted Answer

of 17 terms, the middle term is term 9 so a + 8d = 5 -----> a = 5-8d sum(17) = (17/2)(2a + 16d) = (17/2)(10-16d + 16d) = (17/2)(10) = 85

Mitch sabido · Answer

Find the sum of an a.p of seventeen terms whose middle terms is 5

Anonymous · Answer

Find the sum of 17 term of AP whose middle term is 40

Anonymous · Answer

An A.P contains 25 terms.Of the first term is 15 and the least term is 111,find the middle term