Question

Which term of the A.P, 3, 15,27,39,.... will be 132 -
more than its 54th term.

Anyone tell me answer.I donot understand this question.and explain it how. Tomarrow will be my test of this chapter.​ If anyone give answer rightly, I will mark as brainest ans.

Answer 1

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Here a=3

d=15-3

d=12

Let the term be An

Acc. to que.

An = a54 + 132

An = a + 53d + 132

An = 3 + 53×12 + 132

An = 3 + 636 + 132

An = 771

a + (n-1)d = 771

3 +(n-1)12 = 771

n-1 = 768/12

n=64 +1

n=65

Thus 65th term of AP is 132 more than 54 term of AP

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