Question

if the 10th term of an ap is 52 and 27th term is 20 more than 13 term find the AP​

Answer 1

Answer:

Step-by-step explanation:

Given :-

The 10th term of an A.P. is 52.

And the 27th term of A.P. is 20 more than 13th term

To Find :-

A.P.

Solution :-

10th term of an A.P. is 52

So, a + 9d = 52 ... (i)

27th term of A.P. is 20 more than 13th term

Then, a + 16d = 20 + a + 12d

⇒ 4d = 20

⇒ d = 20/4

⇒ d = 5

Putting d's value in Eq (i), we get

⇒ a + 9d = 52

⇒ a + 9(5) = 52

⇒ a + 45 = 52

⇒ a = 52 - 45

⇒ a = 7

Hence, series of A,P. are 7, 12, 17, 22....

Answer 2

Step-by-step explanation:

see answer in above attachement