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

  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

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

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.