Question

The common difference of two ap are equal. The 1st term of an ap is 3 more than the 1st term of second ap. if the 7th term of ap is 28 and 8th term of second ap is 29 , then find both .

good evening
kaisa ho sabh..xD
mai ab genius rank lugi ⚡
@itzCrazybae38 se ✌✌

<(￣︶￣)>​

Answer 1

Answer:

1,5,9

Explanation:

Let the first term of second AP = a

So, the first term of first AP = a + 3

7th term of first progression is 28

So, A + 6D = 28

⇒ a + 3 + 6D = 28

⇒ a + 6D = 25 … (1)

8th term of the second progression is 29

⇒ a + 7D = 29 … (2)

Solving (1) and (2), we have

D = 4 and a = 1

So, the first AP: 4, 8, 12 …

And the second AP: 1, 5, 9…