NCERT Class X Chapter 5: Arithmetic Progression Exercise 5.2 Question 1(i)

Question:

Fill in the blanks in the following table, given that a is the first term, d the common difference and a_n the nth term of the AP: a=7 d=3 n=8 a_n=?

Given:

a = 7, d = 3, n = 8

To Find:

an (the 8th term of the AP)

Formula:

an = a + (n-1)d

Solution:

We are given a = 7, d = 3, and n = 8. We need to find the 8th term, a₈.

Using the formula an = a + (n-1)d, we substitute the given values:

a₈ = 7 + (8-1)3

⇒ a₈ = 7 + (7)3

⇒ a₈ = 7 + 21

⇒ a₈ = 28

Result:

Therefore, the 8th term of the AP is 28.

Next question solution:

NCERT Class X Chapter 5: Arithmetic Progression Exercise 5.2 Question 1(ii)

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