Question

Which term of A.P. 3, 8, 13, 18, ..., is 248 ?

Answer 1

Step-by-step explanation:

it is absolutely correct answer

Answer 2

Solution :

• First term = 3

• Common difference = 5

• Last term = 248

⇒ An = a + ( n - 1 ) d

→ 248 = 3 + ( n - 1 ) × 5

→ 245 = ( n - 1 ) × 5

→ 245 / 5 = n - 1

→ 49 = n - 1

→ n = 49 + 1

→ n = 50