Find the common difference of the A.P whose first term is 12 and fifth term is 0.

Question 20 - CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic

Question 20 - CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic - Part 2


Transcript

Question 20 Find the common difference of the A.P whose first term is 12 and fifth term is 0. Given First term = a = 12 Fifth term = a5 = 0 We know that, an = a + (n – 1)d a5 = a + (5 – 1)d a5 = a + 4d Putting values 0 = 12 + 4d –12 = 4d 4d = –12 d = (−12)/4 d = –3 So, common difference of AP is –3

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.