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

 

This Question is exactly same as   Ex 5.3, 5

 

Please check solution and video here

https://www.teachoo.com/1618/514/Ex-5.3--5---The-first-term-of-an-AP-is-5--last-term-is-45/category/Ex-5.3/

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.