NCERT Class X Chapter 5: Arithmetic Progression Exercise 5.1 Question 3 (iv)

Question:

For the following APs, write the first term and the common difference: 0.6, 1.7, 2.8, 3.9, . . .

Given:

Arithmetic Progression (AP): 0.6, 1.7, 2.8, 3.9, . . .

To Find:

First term (a) and common difference (d)

Formula:

Common difference (d) = a₂ - a₁ = a₃ - a₂ = ...

Solution:

First term (a₁) = 0.6

Common difference (d) = a₂ - a₁ = 1.7 - 0.6 = 1.1

Alternatively, d = a₃ - a₂ = 2.8 - 1.7 = 1.1

Result:

First term (a) = 0.6
Common difference (d) = 1.1

Next question solution

NCERT Class X Chapter 5: Arithmetic Progression Exercise 5.1 Question 4 (i).

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