" 30.Find the sum of last ten terms of the AP: "8,10,12,--,126" ."

Find the sum of last 8 terms of the A.P. -12,-10,-8,……..,58.

Find the sum of the frst ten terms of the A.P. 8,4,0,-4,-8,……

Find the sum of first 10 terms of the A.P. 4+6+8+………

The sum of the first ten terms of the A.P. 15,10,5,….is……

Find the 10^(th) term from the end of the A.P 8,10,12,….,126.

Find the 10th term from the end of the A.P. 8,10,12, ... 126.

Find the 10 th term from the end of the A.P.8,10,12,...126

(i) An AP 5, 12, 19,.. has 50 terms. Find its last term. Hence, find the sum of its last 15 terms. (ii) An AP 8, 10, 12,..has 60 terms. Find its last term. Hence, find the sum of its last 10 terms.

The sum of the third and the seventh terms of an AP is 6 and their product is 8. Find the sum of first sixteen terms of the AP.