Question

24,19,14,9,4 the common difference of this arithmetic series is ?

Answer 1

The common difference in the arithmetic series 24 , 19 , 14 , 9 , 4 is - 5

Given :

The arithmetic series 24 , 19 , 14 , 9 , 4

To find :

The common difference in the arithmetic series

Solution :

Step 1 of 2 :

Write down the given arithmetic series

The arithmetic series is 24 , 19 , 14 , 9 , 4

Step 2 of 2 :

Find common difference

We know that for a given arithmetic series Common difference is the difference between two consecutive terms in the arithmetic series

First term = a₁ = 24

Second term = a₂ = 19

Third term = a₃ = 14

a₂ - a₁ = 19 - 24 = - 5

a₃ - a₂ = 14 - 19 = - 5

The required common difference

= 2nd term - 1st term

= - 5

Hence common difference in the series 24 , 19 , 14 , 9 , 4 is - 5

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