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Which term of AP is 21,41,63.....is …

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Which term of AP is 21,41,63.....is 210.

Posted by Aman Aditya Kumar ... 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 2 months ago

In the given A.P ;
a = 21
d = 42-21 = 21
l = 210
n = ?
l = a +(n-1)d
210 = 21+(n-1)21
n-1 = 189/21
n = 9+1
n = 10
hence 210 is the 10th term of given A.P

0Thank You

Saurabh ???? 5 years, 2 months ago

I think about it is not good question. Something is wrong in this question

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CBSE > Class 10 > Mathematics