Nikhil started saving money for his new project. He started saving ₹ 240 in the first month, ₹ 300 in the second month ₹ 360 in the third month and so on. He continues to save in this manner for quite some time.

Question

CASE_STUDIESFinding nth Term of Arithmetic ProgressionSum of First n Terms of Arithmetic ProgressionDefinition of Arithmetic ProgressionCommon Difference in Arithmetic ProgressionCBSE PYQ4 sub-questions

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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_STUDIESFinding nth 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