The first term of an AP is 5, the last term is 45 and the sum is 400. Find the number of terms and the common difference.

Question

TextGeneral Term of Arithmetic ProgressionSum of Arithmetic Progression When Last Term is Known

Similar Questions

In order to organise, Annual Sports Day, a school prepared an eight lane running track with an integrated football field inside the track area as shown below : The length of innermost lane of the track is 400 m and each subsequent lane is 7.6 m longer than the preceding lane. Based on given information, answer the following questions, using concept of Arithmetic Progression.

CASE_STUDIESGeneral Term of Arithmetic ProgressionSum of First n Terms of Arithmetic Progression

Assertion (A) : For an A.P., 3,6,9, …, 198, 10th term from the end is 168. Reason (R) : If 'a' and 'l' are the first term and last term of an A.P. with common difference 'd', then nth term from the end of the given A.P. is l − (n − 1) d.

Assertion-Reason