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Solution of 5th question of maths exercise 5.2

Posted by Shikayna Panday 7 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Pankaj Chauhan 7 years, 3 months ago

Now we find that the common difference d=13-7=6 , d=6 And first term A = 7 And , last term An = 205 By using formula we have An = a + (n -1) d = = 205 = 7 + (n -1) 6 = ( n -1 ) 6 = 205 - 7 = n - 1= 198/6 = n = 33 + 1 = 34 Ans Hence , 34 th term is 205 I hope this is the helpful for u ..........

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Sarthak Bhardwaj 7 years, 3 months ago

a=7,d=6,an=205 an=a+(n-1)×d 205=7+(n-1)×6 205=7+6n-6 205=1+6n 6n=205-1 6n=204 n=204÷6 n=34 My name is sarthak Bhardwaj

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