Find the common difference of the A.P whose first term is 12 and fifth term is 0.
CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic
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CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic
Last updated at Oct. 24, 2019 by Teachoo
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