Question

An AP consist of 50 terms of which 3rd term is 12 and last term is 106.Find the 29th term

Answer 1

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Answer 2

Hey friend..!! here's your answer
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an = a + (n - 1) d

According to question ,

a3 = a + 2d = 12 _________(1)

AP consist 50 terms , so last term is 50th term

a50 = a + 49d = 106 ______ (2)

Solve equation 1 and 2 (Refer to attachment)

We get d = 2 and a = 8

No we can find 29th term of AP ,

a29 = 8 + (29 - 1) 2
= 8 + 56
= 64

So that , 29th term of AP is 64 .

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