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Common Difference

For the given...

Question

For the given A. P. $10, 15, 20, 25,$ ......., find the common difference ' $d$ '.

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Solution

The given A.P. is $10, 15, 20, 25$ .........
Here, constant term $a = 10$
Therefore, $d = 15 - 10$
$= 20 - 15$
$= 25 - 20 = 5$
Therefore, common difference $d$ is $5$ .

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