Math, asked by Buvasaar2017, 1 year ago

Which term of an AP:3,15,27,39 will be 132 more than its 54th term?

Answers

Answered by TIRTH5828
3
answer is in picture
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Answered by Anonymous
1

☺ Hello mate__ ❤

◾◾here is your answer...

Lets first calculate 54th of the given AP.

First term = a = 3

Common difference = d =15 - 3 = 12

Using formula an=a+(n−1)d,  to find nth term of arithmetic progression, we get

a54=a+(54−1)d

a54=3+53(12)=3+636=639

We want to find which term is 132 more than its 54th term. Lets suppose it is nth term which is 132 more than 54th term.

Therefore, we can say that

an=a54+132 

......{an=a+(n−1)d=3+(n−1)(12)}{a54=639}

⇒3+(n−1)12=639+132

⇒3+12n−12=771

⇒12n−9=771

⇒12n=780

⇒n=780/12=65

Therefore, 65th term is 132 more than its 54th term.

I hope, this will help you.

Thank you______❤

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