Question

Write first four terms of the A.P. when the first term a and the common difference d are given as follows:

a = -1.25, d = -0.25

Answer 1

a = -1.25, d = -0.25

Let the series be a₁, a₂, a₃, a₄ …

a₁ = a = -1.25

a₂ = a₁ + d = -1.25 + (-0.25) = -1.50

a₃ = a₂ + d = -1.50 + (-0.25) = -1.75

a₄ = a₃ + d = -1.75 + (-0.25) = -2.0

Clearly, the series will be -1.25, -1.50, -1.75, -2.0 ……..

First four terms of this A.P. will be -1.25, -1.50, -1.75 and -2.0.