# Ex 5.1, 3 - Chapter 5 Class 10 Arithmetic Progressions

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Ex 5.1 ,3 For the following A.P.s, write the first term and the common difference. (i) 3, 1, 1, 3 3, 1, 1, 3 First term = a = 3 Common difference = d = Difference between 2 consecutive terms = Second term First Term = 1 3 = 2 Hence , a = 3 , d = 2 Ex 5.1 ,3 For the following A.P.s, write the first term and the common difference. (ii) 5, 1, 3, 7 5, 1, 3, 7, First term = 5 Common difference = d = difference between 2 consecutive term = Difference between second and first term = 1 ( 5) = 1 + 5 = 4 Hence, a = 5 & d = 4 Ex 5.1 ,3 For the following A.P.s, write the first term and the common difference. (iii) 1/3, 5/3, 9/3 , 13/3 1/3 , 5/3 , 9/3 , 13/3 First term of AP = a = 1/3 Common difference = d = Difference of 2 consecutive terms = Difference of second and first term = 5/3 1/3 = (5 1)/3 = 4/3 Hence, a = 1/3 , d = 4/3 Ex 5.1 ,3 For the following A.P.s, write the first term and the common difference. (iv) 0.6, 1.7, 2.8, 3.9 0.6, 1.7, 2.8, 3.9, First term of AP = a = 0.6 Common difference = d = Difference of 2 consecutive terms = Difference of second and first term = 1.7 0.6 = 1.1 Hence, a = 0.6 & d = 1.1

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