The sum of 15 terms of the A.P. 4, 7, 10, ………. Is

Find the sum of 20 terms of the A.P. 1,4,7,10…..

Which term of the A.P. 1,4,7,10,…….. Is 52?

Find the sum of 20 terms of the A.P.1,4,7,10..

What is the sum of first 10 terms of the A.P. 15, 10 ,5 ….?

The sum of …….terms of on A.P. 3, 7, 11, 15,….. Will becomes 406

The sum of all the terms of the A.P.7,10,13,... l is 1242. where l is the last term of the A.P. Find the value of l .

The number of terms of the A.P. 3,\ 7,\ 11 ,\ 15 ,\ ddot to be taken so that the sum is 406 is (a) 5 (b) 10 (c) 12 (d) 14

The number of terms of the A.P. 3,\ 7,\ 11 ,\ 15 ,\ ddot to be taken so that the sum is 406 is (a) 5 (b) 10 (c) 12 (d) 14

30th term of the A.P. 10,7,4,….. Is

Find the sum of 50 terms of the A.P. 1 + 4 + 7 + ....